Was the Gospel of Barnabas a Late Fabrication?
One of the most common objections raised against the Gospel of Barnabas is that it was a late fabrication. The surviving witnesses are indeed late: one is an Italian manuscript generally dated to the sixteenth century, and the other is a later Spanish text.[1] But what would that claim actually mean in historical terms?
If a text like this had truly emerged in that age, who would have noticed it first? How would it have been described? In what circles would it have been discussed? What kind of alarm, interest, suspicion, or opportunism would it have generated? What sort of reaction would it have produced among churchmen, scholars, polemicists, converts, merchants, diplomats, or rulers? Through what channels would it have moved? In what form would it have been copied, translated, quoted, hidden, denounced, or defended?
If such a work had really entered Christian Europe as a dangerous text, what kind of response would Rome have produced? What kinds of accusations, investigations, prohibitions, or proceedings would such a work normally have drawn? In what records would such a reaction be expected to appear?
If such a work had really entered the Muslim world as a useful text, who would have taken it up? How would it have been received in Ottoman, Arab, or North African settings? Who would have translated it, cited it, circulated it, or used it in controversy? What kind of public life would it have acquired?
Europe: The Inquisition’s Silence Is Striking
The real puzzle is not simply whether the text was ever banned. More importantly, why does it leave so little public trace in the very sphere where one might expect the strongest response? From the European side, if the Rome of that age had reacted as it was known to react to texts perceived as dangerous to ecclesiastical authority, one would expect some more definite trace of denunciation, suppression, investigation, or formal proceedings to have entered the historical record.
Islamic World: There Was No Wall, but Contact
This was not a world of sealed religious compartments. It was a shared world in which Muslims, Christians, and Jews lived side by side, often for long stretches in peace, in markets and bazaars, and in everyday life.[27][29] Outside Vienna and the far western edge of Europe, the wider world was one of shared frontiers, mixed populations, trade routes, imperial rivalries, and continual contact. This wider world included the Ottoman Empire, not only the dominant Muslim power of the age, but one of its true superpowers.
Muslims and Christians were not separated by an impenetrable wall. They encountered one another in commerce, diplomacy, war, scholarship, daily life, and religious dispute. Ideas traveled across those lines, and manuscripts could travel with them.
Nor was this contact merely political or abstract. The interaction of these communities was visible not only in daily life, but in music, art, architecture, ornamental styles, popular culture, folklore, and religious expression as well. Even Christian Arabic biblical traditions did not always develop in isolation; they could reflect the surrounding milieu in language and style, and in some cases even sound strikingly Qur'anic in tone.[28] Religious belonging, too, was not fixed in place. Conversion was a familiar feature of that world, and not something reducible simply to force.[29]
If the Gospel of Barnabas had truly entered circulation in such an environment, it would hardly have remained unnoticed. It would have moved through a living world of contact, curiosity, rivalry, and debate. It would have passed from hand to hand, crossed boundaries, and drawn notice from people with very different interests.
Nor would Barnabas have been the lone exception. As countless cases in history show — five of which are noted in the references — prohibited texts repeatedly crossed political and confessional frontiers instead of remaining confined to the authorities that tried to suppress them.[30] If Barnabas had truly entered the Europe–Ottoman line of conflict in that age, it would almost inevitably have set in motion developments that left a significant mark on the history of religions and civilizations. The Moriscos would hardly have acted differently. If they had truly come into possession of such a text, carrying it across that same line would have been one of the most natural things for them to do.
What the Morisco Connection Does and Does Not Show
It is sometimes claimed that the Gospel of Barnabas was fabricated by Moriscos, either during the period of forced baptisms or in the later years of exile, out of a spirit of revenge. The Moriscos were the Muslims of post-Reconquista Spain who were forced into baptism, subjected to pressure and surveillance, and in many cases driven into exile. But here one must first make a simple distinction: hearing of a text is one thing; writing that text is another. According to the Fra Marino story, the Gospel of Barnabas was removed from the Vatican between 1585 and 1590.[1] The first and only known reference to the Gospel of Barnabas in a Morisco context, however, dates to around 1634.[2] In the forty to fifty years between those points, it is entirely plausible that the name of the text and its most basic claim — especially the idea that it was a Gospel foretelling Prophet Muhammad — may have spread by word of mouth. But this does not show that the text was in Morisco hands or that they wrote it. What we see is not authorship, but later awareness.
Around 1634, Ibrahim al-Taybili, writing in the exiled Morisco milieu in Tunis, refers to Barnabas with the words, "y asi mesmo en Elanjelio de San Barnabé donde se hallará luz,"
that is, roughly, "Likewise, in the Gospel of Saint Barnabas light will be found there."
[2] This suggests not that the detailed contents of Barnabas were in their hands, but that it may have been heard of as a useful source pointing to the truth about Prophet Muhammad. In other words, what we see here is not proof of possession of the full text, but a brief reference to a work whose name and basic function had become known.
Moreover, while the earliest surviving witness of the Gospel of Barnabas is in Italian, the literary and scribal world of the Moriscos was shaped around Spanish, Arabic, and especially aljamiado.[1][2] This further weakens the claim of Morisco authorship. More importantly, if Moriscos had truly possessed a text like Barnabas, it is difficult to imagine that it would have remained so faint. In Christian lands, a work of this kind would likely have provoked serious controversy, scrutiny, and proceedings. And for Moriscos already living in exile, carrying such a text into the Ottoman world would have been far easier than leaving it buried in obscurity. A text so well suited to grievance, vindication, and religious struggle would not merely have been mentioned in passing; they would have regarded it as a duty to carry it wherever they could. Instead of remaining obscure, it would far more naturally have been circulated, repeated, and brought into wider Islamic awareness.
Note: The Spanish translation was made from the Italian manuscript.[1] This is also stated explicitly in the note at the beginning of the Spanish text.
What Does This Silence Show?
The conclusion to be drawn from all this is not that the Gospel of Barnabas must therefore be worthless or entirely a late text. The conclusion is narrower but clearer: this is not a polemical work that was produced by Muslims, kept in Muslim hands, and used for centuries against Christians.
For saying "Muslims did not know it"
is one thing; saying "the text had no previous existence in the Christian world"
is another. There are signs that a Gospel under the name of Barnabas was known by name in the Christian world in earlier centuries as well. In the Decretum Gelasianum, the phrase the Gospel in the name of Barnabas apocryphum
appears explicitly.[4] This does not prove that the present text is certainly identical with that ancient work; but it does show that the title of a Gospel under Barnabas's name was known in late antique Christianity.
The Decretum Gelasianum by itself does not prove that the text known today as the Gospel of Barnabas is identical to the work condemned under that name in late antiquity. But if a text like Barnabas — one that still unsettles certain circles even now — existed in some form at that time, its prohibition would hardly be surprising. Nor is it possible to prove that the two were altogether different. What can be said is that the arguments often presented as if they had already settled the matter are not as strong as they are made to appear. As this page shows, several of them are weak enough to be challenged quite easily.
In short, explaining the Gospel of Barnabas as a Muslim fabrication may seem easy at first glance. But when the question of historical circulation and the silence that continued until the beginning of the twentieth century are carefully considered, that explanation does not hold.
Could It Have Been Produced in Europe by Jews or Christians?
Once it becomes clear that it was not a Muslim fabrication, another possibility remains: could this text have been produced within Europe, in certain Christian or Jewish circles?
This is a serious question. Yet the language of the Gospel of Barnabas, its aims, and the severity of its stance make it difficult to regard it as an ordinary forgery. For texts that seek acceptance usually try to settle themselves within the religious world in which they arise. Rather than confronting existing authority all at once, they tend to proceed more cautiously, persuading the reader gradually and following a path more likely to gain acceptance. Barnabas does the opposite. From Paul to the crucifixion, from the status of Jesus to Prophet Muhammad, it takes an open, sharp, and uncompromising line on the most sensitive subjects.
So the issue is not merely whether it is "forged or not."
The real question is this: if this text was produced later, why does it not behave like a typical forgery?
Why Does Barnabas's Open Stance Against Paul Matter?
One of the most striking features of the Gospel of Barnabas is the stance it takes against Paul from the very beginning. In the prologue, Paul is directly and unequivocally criticized and presented as someone who spread false teachings. The significance of this stance lies in the fact that Paul is not an ordinary figure. He is not merely one of the influential figures of early Christianity; he was also deeply formative in the shaping of church thought, occupies a vast space in the New Testament through the letters attributed to him, and holds a central place in the later development of Christian theology.[7]
For that reason, the Gospel of Barnabas is not merely attacking some religious personality; it is confronting head-on a figure who carries enormous weight in the formation of dominant Christianity. Because it cuts against the logic of a convenient forgery. A text meant to survive, persuade widely, or move safely through Christian Europe would hardly choose to attack Paul so directly.
Some Examples That Fit the Pattern of Forgery
A simple question helps here: if Barnabas were a forgery, why does it not behave like the forgeries we already know? Well-known medieval forgeries such as the Donation of Constantine and the Pseudo-Isidorian Decretals generally sought legitimacy from within the tradition.[8] To these may be added the Apostolic Constitutions, the Apostolic Canons, the Didascalia Apostolorum, and the Testamentum Domini.[10][11]
One may also include the Pseudo-Dionysian corpus, the Clementine Homilies, the Clementine Recognitions, the so-called Second Letter of Clement, the supposed correspondence between Paul and Seneca, the forged texts circulated under the Symmachian name, and the forged capitularies attributed to Benedict Levita.[12][13][14][15]
These texts are not identical in genre or purpose, yet they share a clear common tendency: rather than confronting the religious order from outside, they seek to establish their authority from within. They do so by speaking under apostolic names, by attaching themselves to bishops, councils, liturgical tradition, or earlier ecclesiastical precedents, and by presenting themselves in forms more likely to be received as legitimate. Most importantly, they generally do not launch frontal attacks on central figures such as Paul or on the main dynamics of the established religious structure. It is precisely for this reason that they stand apart from the Gospel of Barnabas along what may be called the typical pattern of forgery.
Is There Really a Dante Parallel?
Attempts to connect the Gospel of Barnabas to Dante are not convincing when examined closely. The point usually highlighted first is the expression "dei falsi e bugiardi"
— that is, "false and lying gods."
Yet trying to build a strong link between two texts on the basis of a single verbal resemblance is weak from the outset. Such an expression is not uniquely Dantean in meaning; phrases of this kind could easily circulate within a shared religious and cultural language. To magnify a small verbal contact and infer direct textual kinship from it is not solid evidence.[1]
Nor does the matter end with that phrase. Parallels have also been proposed between Barnabas and Dante on the basis of the “nine heavens”
and the descriptions of hell. But here too the resemblance is much less substantial than it first appears. In Dante, the nine heavens are not a vague ninefold scheme, but a detailed system of distinct celestial spheres: the Moon is one heaven, Mercury another, Venus another; likewise the Sun, Mars, Jupiter, and Saturn are each counted as separate heavens. To these are added the Fixed Stars and the Primum Mobile. More than that, Dante's structure does not even end with these nine; beyond them stands the Empyrean, where Dante places the true blessed dwelling, the angels, and the presence of God.[17] In Barnabas, by contrast, the picture is entirely different: the first heaven is so vast that the world beside it is reduced, as it were, to dust; the second surpasses the first in the same manner; this ascending scale continues to the last heaven, and then beyond them all comes Paradise, greater than all the heavens.[16] Yet Barnabas does not identify this Paradise with God. On the contrary, when Peter tries to draw such a conclusion, Jesus rebukes him openly: "Hold thy peace, Peter, for thou unwittingly blasphemest."
[16] The real common point between the two texts here lies not in shared cosmological content, but almost entirely in the mere presence of the number nine.
The same is true of the descriptions of hell. In Barnabas, hell is described as seven regions and seven centers, tied to different kinds of sin.[18] In Dante, by contrast, the Inferno consists of nine circles.[19] The moral structure based on seven appears in Dante not in hell but in the Purgatorio, where the terraces are arranged according to the seven deadly sins.[20] So even here a direct equivalence is hard to sustain: the numbers differ, the structure differs, and the function differs. It is natural that Barnabas and Dante should share certain hellish images that appear across the history of religions in sacred texts and religious traditions more broadly; detailed depictions of the afterlife, punishments fitted to sins, and fearful infernal scenes did not begin with Dante. But the existence of a few comparable elements is not enough to establish a direct line of influence. On closer examination, the differences prove more substantial than the similarities.[18][19][20]
Once to this is added the clear difference of tone between Dante's satirical, at times mocking and caricaturing literary manner and the grave, intensely serious manner of the Gospel of Barnabas, the distance between the two texts grows even wider. Their orientations, aims, and styles are simply too different for a strong textual bridge between them to be persuasive. In the end, the claim of Dantean influence in Barnabas magnifies a few limited resemblances far beyond what they can bear and functions as a forced interpretation aimed at placing Barnabas within a particular later period.
Linguistic Clues, Gospel Harmonies, and the Question of "Academic Consensus"
What is meant here by "gospel harmony"
is the combining of material from the four canonical Gospels into a single continuous narrative. The popular objections to Barnabas — Nazareth, the seven or nine heavens, the title "Messiah,"
and similar claims — are mostly polemical objections, and they are answered in those linked sections on the main page. The academic argument is narrower. It turns mainly on a small number of observations: the Dante comparison, the jubilee question, alleged linguistic clues, and especially Joosten's claim that Barnabas shares a few readings with Middle Italian gospel harmonies.[1][5]
The phrase "academic consensus"
should therefore be used carefully. It can sound as though hundreds of independent specialists have examined the Gospel of Barnabas in depth and reached the same conclusion. In reality, the modern scholarly discussion is relatively small and divided, shaped by a limited number of writers and a limited set of repeated arguments: the Raggs, later Morisco-origin proposals, Slomp and Sox, Joosten's studies, and the methodological response of Schmid and den Hollander.[1][2][39][47] These writers also do not play the same role. The Raggs edited and translated the Vienna manuscript; Sox and Slomp belong to the Morisco-authorship line; Joosten offered the most focused harmony and provenance studies; Schmid and den Hollander mainly challenged Joosten's method; they did not add another argument for late fabrication, but warned that his use of small textual parallels could reach too far back. This does not make those studies irrelevant, but it does mean that their weight should be measured proportionately.
The spelling argument reveals more about the approach to the manuscript than about the manuscript itself. A few minor orthographic details — such as "hanno"
where "anno"
would be expected, or variant spellings of "immenso splendore"
in the printed Italian text — are treated as if they could identify the author, the community, and the historical origin of the whole Gospel.[48] That is a very large conclusion to hang on a few letters.
Anyone familiar with manuscript culture knows that spelling variation and scribal correction are normal in handwritten texts. The Codex Sinaiticus Project explains that corrections in Sinaiticus include additions, deletions, substitutions, changes of word order, and that the great majority of its corrections are changes to spelling.[49] Jongkind's study of Sinaiticus gives an even sharper example: on just five surviving leaves of 1 Chronicles, two scribes made ninety corrections in total.[50] If such things occur even in major biblical codices, it is hardly serious to treat a few spelling irregularities in the Italian Barnabas as a decisive clue to Morisco authorship.
This is essentially what the Morisco-authorship line represented by writers such as Sox and Slomp attempts to do: small linguistic irregularities are made to carry a much larger historical reconstruction.[2][47] The impression given is not that the evidence naturally converges on a Spanish-speaking author, but that the manuscript is being searched for any small opening through which a preferred theory can enter. A silent "h"
and a spelling variation in one phrase are made to do the work of an entire historical argument.
Joosten, however, reads the larger textual picture differently. His aim is not to prove that Barnabas is ancient. His reconstruction points instead toward an Italian, probably late-medieval textual environment, and away from Spanish/Morisco authorship. He explicitly describes the Morisco hypothesis as attractive but urges caution, argues that priority belongs to the Italian text, and concludes that although Barnabas certainly became known in a Morisco milieu, nothing indicates that the writing itself was created there.[5] In his view, the closest textual contacts of Barnabas are better explained through an Italian gospel-harmony environment, especially Venetian and Tuscan harmonies.[5]
Yet the evidence Joosten invokes is dangerous for the late-forgery argument itself. Once Barnabas is said to preserve Diatessaronic or possible Syriac traces, the door is no longer merely open to medieval Italy; it may reach back toward the second-century world of Tatian's Diatessaron. Joosten does not need to intend that conclusion for the implication to exist. This is precisely the methodological danger Schmid and den Hollander identified: they criticize Joosten for introducing the Gospel of Barnabas, perhaps as late as the sixteenth or seventeenth century, as a potential source for readings of the second-century Diatessaron.[39]
Joosten's five main parallels are not long passages or independent historical proofs. They are small shared readings: "two masters who are enemies,"
"in the power of Beelzebul,"
"questions and answers,"
"the enemy of man,"
and "sinned against this one."
[5] These are worth examining, but their scale must be kept in view. At most, they may show that the surviving Italian form of Barnabas passed through, or made use of, a gospel-harmony layer. They do not prove that the whole work, in all its theological and narrative substance, was invented as a late medieval or Morisco forgery.
Some of these examples are also weaker than they first appear. The "two masters who are enemies"
reading is not an idea imported from nowhere: the canonical saying itself already contrasts loving one master and hating the other. Second Clement, an early Christian homily usually placed in the second century, also interprets the same moral contrast in terms of two opposing realities — this world and the world to come.[40] Likewise, the "pull up the weeds"
wording sometimes mentioned alongside Joosten's examples is not uniquely late Italian. Joosten himself notes that it is also found in the Persian harmony and in the Gospel of Thomas; Thomas is an early apocryphal gospel usually placed within the second-century discussion of Christian origins.[5][41]
This matters because a translator does not translate in a vacuum. The 1907 English translation by Lonsdale and Laura Ragg illustrates the point clearly. In their preface, the translators explain that they deliberately tried to preserve an archaic style rather than render the text into ordinary modern English.[42] Yet even under that self-conscious restraint, their own vocabulary and conceptual world still enter the translation. Expressions such as "the unconscious"
in chapters 106 and 195, and "the sensitive, vegetative, and intellectual soul"
in chapter 106, do not prove that the Gospel of Barnabas was composed in modern English.[43][44][45][46] They simply show how a translator's language, intellectual habits, and available terminology can become visible in the form of a text.
The same caution must be applied to the Italian manuscript. If later English expressions in the 1907 translation do not date the origin of the Gospel to modern England, then Italian idiom, scholastic terminology, or gospel-harmony phrasing in the surviving Italian form cannot by themselves date the origin of the whole work to late medieval Italy. They may tell us something important about transmission, translation, and redaction — but not necessarily about first composition.
Even if the Italian Barnabas manuscript contained hundreds of spelling variations or corrections — as Codex Sinaiticus itself does — that still would not by itself prove late invention.[49][50] It would point first to the normal realities of handwritten transmission: copying, correction, translation, redaction, or contact with other textual traditions. How much less, then, can a few spellings and a handful of harmony-like readings prove the total late invention of the Gospel of Barnabas?
The proper conclusion is not that these details solve the origin of the Gospel, but that they are being asked to do far more than they can bear. At most, they belong to the visible history of the surviving Italian form. They cannot carry the heavier claim that the whole work, in all its theological and narrative substance, was invented as a late medieval or Morisco forgery.
Repetition and Verdict
The Verdict Is Often Given Before Reading
One must ask the following question: if most of the objections raised against the Gospel of Barnabas are not as strong or decisive as claimed, why are they repeated so insistently? Part of the answer lies not in the text itself, but in the discomfort it creates in certain circles. The Gospel of Barnabas is rarely examined with neutral historical curiosity. Instead, certain claims are echoed almost like a chorus; over time, these repetitions turn into assumptions, and the assumptions solidify into a pre-formed verdict: Barnabas is late, inconsistent, and contradicts the Qur'an; therefore, it is forged.
This language becomes particularly sharp in apologetic and polemical circles. Although the Acts of the Apostles clearly states that Barnabas and Paul had a sharp disagreement
and parted ways,[31] the harsh criticism of Paul in the Barnabas text is still readily turned into evidence of forgery. John Gilchrist, for example, openly describes this as a major tactical blunder.
[32] The same reflex appears in other cases: if the text deviates from the canonical line, it is labeled late forgery
; if it shows similarities, it is called plagiarism
; if it contains late elements, it is a late text
; if it appears archaic, it is made to look old.
Catholic Answers' direct labeling of Barnabas as a medieval fake
is a typical example of this same reflex.[33]
A Late Manuscript Does Not Mean a Late Composition
The Italian and Spanish copies of the Gospel of Barnabas that have reached us today are late: the Italian manuscript is generally dated to the late sixteenth century, and the Spanish witness to the eighteenth century.[1] However, this does not mean the text was composed from scratch in those periods.
Presenting the dates of the surviving copies as if they were the date of the original composition is not neutral. These dates may also point to the final forms of an older text that passed through a long process of transmission, translation, and redaction. Proving the opposite definitively is neither technically nor logically possible. Claims that certain elements in the text were shaped in a medieval context are examined separately under the headings of Dante Parallel and Gospel Harmony.
The Illusion That the Verdict Has Gained General Acceptance
This impression of broad acceptance can also be seen in some Muslim circles. What is expressed here is usually not the result of a close examination of the text, but ready judgments adopted in good faith. Sometimes out of politeness, sometimes out of a desire to be cautious, and sometimes because one assumes the conclusion has already been firmly established, these judgments can be accepted without question.
In more contentious environments, however, a narrow point is singled out from the text, a superficial interpretation is offered, and then it is spread as if it were an unshakable scientific fact. From there, statements such as Look, even Muslim scholars consider it forged
easily find ground. The interesting thing is that some of these confidently repeated claims collapse even upon a simple look at the text itself. For example, it is argued that Barnabas cannot be authentic because the Qur'an calls Jesus the Messiah
— as if the text rejected this title. Yet the available Barnabas text explicitly refers to Jesus as the Messiah
both in the introduction and in chapter 6.[21] For a broader evaluation of this issue, see the Messiah heading on the main page.
Not Alien to the Line of Revelation
As seen on the Paraclete and Signs pages, the line in John concerning a future guiding figure is not a single passing sentence. It appears across four main passages in John 14–16 and forms a substantial block of around thirteen verses.[23] In Barnabas, the same line appears across nine separate contexts in a total of eleven chapters as a clear pointer to a coming prophet.[25] Taken together, they make it hard to see Barnabas as wholly separate from the wider Gospel tradition on this point.
This line was not read in that direction only by isolated readers. In early Christian history, movements such as Montanism treated the Paraclete promise as pointing to a later prophetic manifestation,[24] and the influential early Christian writer Tertullian later joined that New Prophecy movement.[34] In later centuries, former clergymen such as Anselm Turmeda and David Benjamin Keldani — along with other clergy-trained converts in later polemical settings — would read the same Johannine passages in relation to Prophet Muhammad.[35][36][37] In that sense, Barnabas was not standing by itself on this point.
When this is considered together with the strong monotheistic emphasis in Matthew, the picture becomes even more meaningful. Jesus says that he has come not to abolish the Law and the Prophets but to fulfill them; he gives the greatest commandment as loving God with all one's heart; and in his prayer he submits his own will to the will of God.[22] Seen in that light, it is not right to treat the monotheistic line and the expectation of a coming prophet in Barnabas as something at odds with Gospel tradition. The difference with Barnabas is not that it invented this line, but that in some places it states it more openly. It is also a reasonable possibility that at least some of the passages in which Prophet Muhammad is named explicitly belong not to the earliest core of the text but to later redactional layers.
Not Alone on the Crucifixion Question
Just as the Gospel of Barnabas is not wholly alien to Gospel tradition in its emphasis on monotheism and the expectation of a coming figure, it is also not entirely alone, with due caution, in the way it stands apart from later orthodox formulations of the crucifixion. In early Christian history, there were also heterodox groups and currents that did not frame the Passion in the later orthodox manner: the Basilidians in second-century Alexandria — a sect for which Basilides is said to have even compiled a gospel of his own — were reported to hold that Simon of Cyrene was crucified in Jesus' place; Cerinthus, probably a Jew from Egypt and active around c. AD 100, founded a short-lived Jewish-Christian sect and taught that the heavenly Christ departed from Jesus before the Passion; and docetic circles, already being opposed by Ignatius of Antioch in the early second century, treated Christ's sufferings as apparent rather than fully literal.[26] In this sense, Barnabas was not entirely alone on this question, even if its own formulation remains distinctive.
What Personal Experience Shows
The Gospel of Barnabas draws attention not only as a subject of debate, but also for the effect it leaves on the reader. It particularly stands out with the first major address in chapter 12, Jesus' description of God in chapter 17, the scenes of the Day of Judgment beginning in chapters 51–58, the depictions of the afterlife and hell in chapters 59–62 and 135–137, the description of paradise in chapters 168–178, and the strong monotheistic line centered on Abraham in chapters 26–29.
This is, of course, a subjective experience. Nevertheless, many readers feel the immediate impact of the text — especially Jesus' sermons, the afterlife scenes, and the sections describing God — as soon as they begin reading. Sometimes even a brief look says more than long polemics.
What matters, then, is not whether every detail can be resolved, but whether the case for dismissing the text is as strong as it is often assumed to be.
Next step
If the major forgery theories do not fully explain the text, the next question is which historical path best accounts for both its silence and its later emergence.
Continue to Process of Elimination & a Historical Hypothesis →Categorized reference map
Primary texts and manuscript data
- Cod. 2662, the Ragg translation, Decretum Gelasianum, List of Sixty Books, and cited Barnabas chapters form the primary data layer.
Modern critical controls
- Joosten’s Diatessaron and Italian/Spanish priority arguments, NASSCAL catalogue entries, and manuscript-provenance data represent the strongest modern late-date controls.
Opposing arguments discussed
- Muslim forgery, Morisco production, Dante parallel, Gospel harmony dependence, linguistic clues, and alleged contradictions are handled as individual arguments.
Inference level
- The page argues that the late-forgery case is weaker than often stated; it does not claim that every surviving form is untouched by later translation or redaction.
References
[1] Jan Joosten, "The Date and Provenance of the Gospel of Barnabas,"
Journal of Theological Studies 61/1 (2010), pp. 200–215.
[2] Jan Slomp, "The Gospel of Barnabas,"
in Christian-Muslim Relations 1500–1900; see especially his summary of Morisco-origin arguments and discussion of the Spanish manuscript, Morisco setting, and related provenance claims.
[3] Library of Congress, The Vatican Library & Renaissance Culture: Orient to Rome.
[4] Decretum Gelasianum ("the Gospel in the name of Barnabas apocryphum"
).
[5] Jan Joosten, "The Gospel of Barnabas and the Diatessaron,"
Harvard Theological Review 95/1 (2002), pp. 73–96. See pp. 74–75 on caution toward the Morisco hypothesis and Italian priority; pp. 87–88 on the five Barnabas–Italian harmony readings; pp. 90–92 on western/eastern Diatessaronic and Old Syriac links; and pp. 95–96 on the conclusion that Barnabas used a Middle Italian harmony while also becoming a witness, in some readings, to the Old Latin harmony or original Diatessaron.
[6] Leviticus 25:11; Gospel of Barnabas, chapter 82, in Ragg, The Gospel of Barnabas (1907), on the jubilee wording.
[7] Encyclopaedia Britannica, "Pauline letters"
and related entries on Paul.
[8] Encyclopaedia Britannica, "Donation of Constantine"
; sources on the False Decretals / Pseudo-Isidorian forgeries.
[9] The Cambridge Companion to the Spanish Inquisition and related work on censorship.
[10] Apostolic Constitutions, Apostolic Canons, and Didascalia Apostolorum.
[11] Testamentum Domini.
[12] Pseudo-Dionysian corpus.
[13] Clementine Homilies, Clementine Recognitions, and Second Letter of Clement.
[14] The supposed correspondence between Paul and Seneca.
[15] The Symmachian Forgeries and Benedict Levita.
[16] Gospel of Barnabas, chapter 178, in Ragg, The Gospel of Barnabas (1907), on the ascending heavens and Paradise beyond them.
[17] DanteWorlds, "Paradiso – Main Page,"
"Moon,"
"Primum Mobile,"
"Empyrean."
[18] The Gospel of Barnabas, chapters 59 and 135.
[19] Encyclopaedia Britannica, "Inferno."
[20] The Divine Comedy / Purgatorio and "seven deadly sins"
entries.
[21] Gospel of Barnabas, prologue and chapter 6.
[22] Matthew 5:17–19; 10:40–41; 13:57; 15:24; 21:11.
[23] John 14:16; 15:26; 16:7–14.
[24] Encyclopaedia Britannica, "Montanism,"
on the "New Prophecy"
movement and its claim that the Paraclete promise opened toward a later prophetic manifestation.
[25] North American Society for the Study of Christian Apocryphal Literature (NASSCAL), e-Clavis: Christian Apocrypha, entry on the Gospel of Barnabas. The entry notes explicit future-prophet references in chapters 17, 44, 55–56, 82–83, 97, 136–137, 163, 212, and 220 — nine contexts across eleven chapters.
[26] On these early heterodox lines, see Encyclopaedia Britannica, "Basilides,"
"Cerinthus,"
and "Docetism"
; and Irenaeus, Against Heresies I.24 on the Basilidian claim that Simon of Cyrene was crucified in Christ's stead.
[27] Heather J. Sharkey, A History of Muslims, Christians, and Jews in the Middle East, esp. chs. 1–2 on shared worlds
, daily life, and intercommunal relations.
[28] Alexander Treiger, "ʾInǧīl-in mubīn: A Mixed Archaic, Qur’anic, and Middle Arabic Translation of the Gospels and Its Implications for the Nature of Middle Arabic,"
Bulletin of the School of Oriental and African Studies.
[29] Selim Deringil, Conversion and Apostasy in the Late Ottoman Empire; see also his "There Is No Compulsion in Religion"
on conversion in the late Ottoman world.
[30] Among countless historical examples, five may be noted here: William Tyndale's New Testament, blocked by English authorities and smuggled into England; Protestant books carried from Geneva into France through underground networks during the Reformation; Boris Pasternak's Doctor Zhivago, published abroad after being blocked in the Soviet Union; Aleksandr Solzhenitsyn's The Gulag Archipelago, first published in Paris after Soviet suppression; and the wider samizdat / tamizdat phenomenon, in which censored works were secretly copied or smuggled abroad for publication.
[31] Acts 15:36–41, especially verse 39, on the sharp disagreement
between Barnabas and Paul.
[32] John Gilchrist, "Origins and Sources of the Gospel of Barnabas,"
where the anti-Pauline opening is described as a major tactical blunder.
[33] Catholic Answers, "Why the 'Gospel of Barnabas' Is a Medieval Fake."
[34] Encyclopaedia Britannica, "Tertullian,"
on his later association with the Montanist movement.
[35] A. J. Forey, "Western Converts to Islam (Later Eleventh to Later Fifteenth Centuries),"
Traditio 68 (2013), on Anselm Turmeda and related conversion-literature contexts.
[36] Bilal Bas, "From Benjamin David to Abdu'l-Ahad Dawud: the Story of a Chaldean Christian's Conversion to Islam in the Early 20th Century,"
Yakın Doğu Universitesi Islam Tetkikleri Merkezi Dergisi 11/1 (2025), on David Benjamin Keldani / Abdu'l-Ahad Dawud.
[37] Alberto Tiburcio, "Muslim-Christian Polemics and Scriptural Translation in Safavid Iran: ʻAli-Qoli Jadid al-Eslām and his Interlocutors,"
Iranian Studies 50/4 (2017), for other clergy-trained converts who linked Johannine expectation to Prophet Muhammad in later polemical settings.
[38] On wooden casks and barrels in the Roman world, see Roman Inscriptions of Britain, RIB 2442, noting their use for transporting and storing wine, especially in Alpine, Gallic, and Rhineland contexts. This does not make every cask/barrel image impossible in antiquity, but it does caution against treating such language as a simple first-century Palestinian detail rather than a possible trace of later translation or cultural coloring.
[39] August den Hollander and Ulrich Schmid, "The Gospel of Barnabas, the Diatessaron, and Method,"
Vigiliae Christianae 61/1 (2007), pp. 1–20. The abstract states that Joosten introduced the Gospel of Barnabas, perhaps as late as the sixteenth or seventeenth century, as a potential source for readings of Tatian's second-century Diatessaron, and that the article offers a methodological critique of Joosten's analysis.
[40] Second Clement, especially chapter 6, on the opposition between this world and the world to come; see also Early Christian Writings, "Second Clement,"
on its usual second-century placement.
[41] Gospel of Thomas, saying 57, on the weeds being pulled up; see also Early Christian Writings, "Gospel of Thomas,"
on Thomas as an early apocryphal gospel usually discussed in relation to the second century.
[42] Lonsdale and Laura Ragg, The Gospel of Barnabas (Oxford: Clarendon Press, 1907), Preface. The translators state that they tried to preserve "the archaic form"
and "something even of the crudeness of the original."
[43] Ragg, The Gospel of Barnabas (1907), chapter 106, "The Soul and the Sense."
The passage contains both "the sensitive, vegetative, and intellectual soul"
and "as is seen in the unconscious when the sense leaveth him."
[44] Ragg, The Gospel of Barnabas (1907), chapter 195, "Death, the Soul, and the Present Life."
The passage says that "the unconscious waiteth for the sense to return."
[45] Douglas Harper, "unconscious,"
Online Etymology Dictionary. The entry distinguishes older adjectival uses from the noun "the unconscious"
in psychology, recorded from 1876 as a loan-translation of German das Unbewusste.
[46] On the philosophical background of soul-faculty language, see Encyclopaedia Britannica, "Aristotle — Philosophy of mind"
, on vegetative and sensitive soul; and Stanford Encyclopedia of Philosophy, "Aristotle's Psychology,"
on nutritive, perceptual, and intellectual faculties.
[47] David Sox, The Gospel of Barnabas (London: George Allen & Unwin, 1984); see also Slomp, ref. 2 above, for the Morisco-authorship line and related provenance arguments.
[48] Ragg and Ragg, The Gospel of Barnabas (1907), Italian text, chs. 3–4, pp. 8 and 15, where the printed text gives forms such as "imenso splendore"
and "inmensso/inmenso splendore"
; and ch. 149, p. 344, where "ogni hanno"
appears where "ogni anno"
would be expected.
[49] Codex Sinaiticus Project, "The Transcription"
, explaining correction types in Sinaiticus and noting that the great majority of its corrections are spelling changes.
[50] Dirk Jongkind, "Studies in the Scribal Habits of Codex Sinaiticus,"
Tyndale Bulletin 56/2 (2005), pp. 154–57, especially p. 156: on five extant leaves of 1 Chronicles, two scribes made ninety corrections in total.