Tuesday, July 14, 2026

The Greek Manuscripts of the Johannine Comma

The present post is largely drawn from Elijah Hixon's helpful post (link to post) over at the Evangelical Textual Criticism blog.  

Hixon writes:

There are 10 Greek manuscripts that have the CJ, but only three of them have it in the same form as in Stephanus’ 1550 edition and Scrivener’s edition reprinted by the TBS—these three are 221marg, 2318 and 2473. All ten of these manuscripts are indexed for 1 John 5:7–8 at the INTF’s VMR, so you are free to verify them yourself. 

Hixon goes on to note: "Before I get there, I want to mention that sometimes an eleventh Greek manuscript is cited. GA 635 is sometimes cited as having the CJ in the margin, but it does not."

In addition to what Hixon has mentioned, I've added a line for the Complutensian Polyglot, since some folks like to suggest that the Complutensian editors transcribed their text from a manuscript, rather than emending based on the Latin (despite Stunica himself acknowledging the opposite, as explained here).

In a nutshell, before Erasmus' fourth edition, what is today the "TR" Johannine Comma did not exist. Of the four manuscripts with something Comma-like in the main text, the only one that is before the time of Erasmus is transparently a back-translation from the Latin, in the context of a Greek-Latin diglot text.  The only one from the time of Erasmus likewise appears to be a back-translation from the Latin, because it lacks the articles.  The remaining two match the TR text, but both are from long after the age of printing (i.e., 16th or 17th century), and are thought to be based on a printed Greek text.

Even if we were to consider the marginal readings in manuscripts that contain them, only one of the marginal notes is a viable candidate to be before the time of Erasmus, and this one is likewise a transparent back-translation from Latin.

In short, the Greek evidence confirms that the Comma Johanneum (CJ) is a Latin interpolation.   


Manuscript Evidence of Latin influence Has the TR reading? Margin/Main Text
GA 635 (11th Century) Hixon notes that GA 635 is sometimes cited as containing the Comma, but does not. Others have suggested that this has been cited in error for 636 (see below)  Does not actually contain the Comma. N/A
GA 629 (14th century) Latin-Greek diglot; the Greek lacks articles before the heavenly witnesses, suggesting translation from Latin. No; has ἀπὸ τοῦ οὐρανοῦ / ἀπὸ τῆς γῆς, lacks articles, reads Πνεῦμα Ἅγιον, and has εἰς τὸ ἕν. Main text
GA 61 (15th-16th)  Franciscan provenance; copied from GA 326 while adding Vulgate-derived readings, and the Comma lacks Greek articles. No; lacks the articles and reads Πνεῦμα Ἅγιον. Main text
GA 429marg (margin after 1522) Marginal addition copied from Erasmus’s third edition, the article-less form of the Comma. No; lacks the articles and follows Erasmus’s third-edition form. Margin
GA 918 (late 16th century) Spanish Catholic provenance; the Comma appears to have been added from Erasmus’s third edition. No; lacks the articles and follows Erasmus’s third-edition form. Main text
GA 2473 (17th century) Apparently copied from a later printed Textus Receptus edition rather than from an independent Greek manuscript tradition. Main text
GA 2318 (18th century) Late commentary manuscript; Wachtel considered its biblical text copied from a later Textus Receptus edition. Main text
GA 177marg (margin 18th century) Marginal addition by the Catholic priest Ignatius Hardt in 1785; the verse numbering points to a printed source. No; lacks articles and οὗτοι, reads εἰς τὸ ἕν, and omits the continuation into v. 8. Margin
GA 221marg (margin 19th century) Marginal addition made after a 1854 catalogue stated that the manuscript lacked 1 John 5:7, suggesting dependence on a printed source. Margin
GA 88marg (16th or later century) Later marginal hand; Latin note, Counter-Reformation provenance, Latin-looking alpha, and no nomina sacra suggest printed or Latin influence. No; apparently lacks the articles before the heavenly witnesses. Margin
GA 636marg (15th or later) Later marginal hand; lacks definite articles and appears amid Greek and Latin notes, suggesting possible translation from Latin. No; lacks the articles and omits οὗτοι. Margin
Complutensian Polyglot (16th) Printed Greek-Latin New Testament; the Comma is printed in the Greek column alongside the Latin tradition. No; includes καί before ὁ λόγος, omits οὗτοι, and reads εἰς τὸ ἕν. Main text

The Grammatical Argument for the Johannine Comma

This is a response to, "Johannine Comma and Georgios Babiniotis," by Nick Sayers (as retrieved on April 27, 2025).  The article starts with the suggestion: "Voulgaris Vindicated by Leading Greek Expert." That refers to an argument made by Eugenios Voulgaris (aka Eugenius Bulgaris) that argues that the text of 1 John 5 contains a grammatical solecism that is avoided only if the Johannine Comma is included. (text of Voulgaris available here, as retrieved on July 12, 2024)

Sayers begins:

Most critical text proponents don't even engage in the grammatical issues surrounding the Johannine Comma, and those who do, such as Barry Hofstetter, or James White, only reveal that they are not adequately informed about this issue.

This blog does address all sorts of arguments that others do not.

Sayers continues:

In an email discussion with Professor Georgios Babiniotis a few months ago, I asked him about the validity of the claims of legendary Greek professor Eugenius Voulgaris concerning the Johannine Comma. Those familiar with the grammatical arguments made by Voulgaris will be pleased to know that Babiniotis, who is probably one of the most important Greek linguists alive today, said that not only was Voulgaris correct to say we need to keep the Comma for grammatical reasons, and he also took it a step further by pointing out that verse 7 justifies verse 8 because of the “syntactic parallelism” of these two verses.

One of the challenges with interacting with this argument is that we are not given the correspondence that Sayers provided to Babiniotis, in order to understand what question was asked, and how it was asked. We have to make certain assumptions, and that can lead to mistaken conclusions about what is meant by the answers that Sayers reports.  

Let me be clear: I am not impugning Sayers' integrity in the least.  I take for granted that Sayers is honestly and accurately reporting what Babiniotis said and that if there is any error in such reporting, it is unintentional.  It's just that, as it stands, the context we have is incomplete.

Sayers continued:

Babiniotis is a Greek linguist and philologist who has written several books about Greek grammar, etymology, and other Greek language-related topics. He is the former Minister of Education and Religious Affairs of Greece and previously served as rector of Athens University.

As David Crystal is to English-speaking people, so Georgios Babiniotis is to the Greek speaker. Here are some of the books he has written here: https://babiniotis.gr/ergografia/vivlia.

You may know of Babiniotis from his Greek dictionary which is often simply called the "Babiniotis" dictionary.

Prof. Babiniotis is now 87 years old.  His academic credentials seem to be that he has a bachelors in Philology from the University of Athens, and subsequently served as a professor at the University of Athens.  His political appointments are impressive: he clearly is very connected.  I'm not sure in what year Sayers contacted him, but my impression is that it was in 2021.

I don't bring these things up to disparage Prof. Babiniotis.  In 2021, La Linguistique published an article by Babiniotis: "Modern Greek Interpretive Lexicography: from the 18th century to the present day."  The article focuses on Greek dictionaries and suggests the possibility of a new and significant Greek dictionary in the near future.  He certainly is a recognized scholar in the field of dictionaries, as Sayers has highlighted.

Sayers continued:

In May he wrote the following and attached a word doc:

“...Dear Mr Sayers,

I apologize that only now I can answer your kind letter about the N.T. passage discussed by Ευγένιος Βούλγαρης.

Here is my opinion as a linguist, not as an expert in theology.

Γ. Μπαμπινιώτης...”

I don't know why Sayers includes ellipses.  I assume that the meaning is that perhaps Sayers has omitted some other material from the email (for legitimate reasons of privacy, or the like).  There is, of course, nothing much to address in the email itself.  

I appreciate that Babiniotis is focused on his own linguistic skills as distinct from any theological skills.  This may, however, pose a small problem for his analysis, as we shall see.

Sayers then offers "(Word Doc):" followed by the following text, which I understand to be the entirety of Babiniotis' comments.  If there is anything missing, of course, that could alter the analysis of what is provided.

Babiniotis begins:

I will not discuss the opinion of the really great theologist and scholar (yet not a linguist) bishop Ευγένιος Βούλγαρης as I do not know on what conditions it was formulated. However, linguistically —though with another explanation— Ευγένιος Βούλγαρης is right to consider verse 5.7 obligatory for the existence of verse 5.8.

As I understand it, Babiniotis is saying that Voulgaris has reached the right conclusion, but not for the right linguistic reasons.

Babiniotis continues:

What you are asking has two aspects: a theological and a linguistic one. I can only say my own opinion on the linguistic aspect of the specific text within the frame of what is quite often used in regard to the Greek language and passages of New Testament Greek.

As I understand it, Babiniotis is being careful in view of various changes to the Greek language over time to couch his answer in terms of his understanding of New Testament Greek.  His interpretation might be different if he were dealing with Attic Greek or Modern Greek.  Keep in mind that, of course, New Testament Greek is not Babiniotis' central area of study.

 Babiniotis opines:

The use of masculine gender and not neuter on 5.8.

«καὶ τρεῖς εἰσιν οἱ μαρτυροῦντες ἐν τῇ γῇ,

τὸ Πνεῦμα καὶ τὸ ὕδωρ καὶ τὸ αἷμα

καὶ οἱ τρεῖς εἰς τὸ ἕν εἰσιν»

is linguistically justified on the pattern of “syntactic parallelism”, i.e. on the ground that it makes a pattern completely the same (“parallel”) in structure with that of 5.7.

ὅτι τρεῖς εἰσιν οἱ μαρτυροῦντες ἐν τῷ οὐρανῷ,

ὁ Πατήρ, ὁ Λόγος καὶ τὸ Ἅγιον Πνεῦμα

καὶ οὗτοι οἱ τρεῖς ἕν είσι

Presumably, Babiniotis means that each word of the three words, "τρεῖς ... οἱ μαρτυροῦντες," in verse 8, is masculine because of the parallel to "τρεῖς ... οἱ μαρτυροῦντες" in verse 7, where each of those is masculine.  To be more specific, though, the issue is really about the word μαρτυροῦντες - if that were something other than masculine, both the number and article would surely follow.

It is easy to see the parallelism, but how does Prof. Babiniotis explain the justification?

So for Modern Linguistic analysis what is important is not the mere grammatical “gender agreement rule” (which would lead to the usage of neuter gender : «καὶ τρία εἰσὶ τὰ μαρτυροῦντα ἐν τῇ γῇ…»), but the overruling schema of “syntactic parallelism” which is much more stronger than a simple gender agreement rule.

Conclusion. The issue we refer to has more to do with the linguistic style of the passage; it is the result of a stylistic selection which is far beyond the usage of a grammatical/syntactic rule that would lead to neuter gender and which furthermore would eliminate verse 5.7.

(End of word doc)

Style over syntax seems to be Babiniotis' point.  Following the gender agreement rule (in which case "witness" would be neuter instead of masculine) would damage the style of providing a syntactic parallel between the three heavenly witnesses and three earthly witnesses.

I must admit that even after puzzling over it for a while, it is unclear what Babiniotis means by saying "eliminate verse 5.7." 

We don't know, because Sayers hasn't told us, but presumably Sayers had some unanswered questions as well.  He adds:

George later said in an email:

“...I have given you my own linguistic explanation which is to keep verse 5.7. which justifies verse 5.8. It is grammatical and mainly “syntactic parallelism” of these two verses...”

Unfortunately, we do not even get two full sentences of the explanation offered by Prof. Babiniotis (I'm not even sure that the first part of the quotation is a full sentence).  Moreover, at least as to what he means by "eliminate verse 5.7," the meaning is not at all clear.

All that said, there is no need to agree or disagree with Babiniotis as to things he has not said clearly.  As to what he said clearly, it seems:

  1. Babiniotis does not agree with or accept Voulgaris' linguistic argument, only the conclusion;
  2. Babiniotis thinks that the syntactic parallelism with 5.7 is an adequate explanation for 5.8 having the masculine gender (notwithstanding that it violates the gender agreement rule); and
  3. Babiniotis thinks that if 5.7 needs to be present in order to justify 5.8 on the grounds of syntactic parallelism.

I do not think that my analysis of Babiniotis is unfair or in the least controversial.  I don't think it requires taking a low view of Babiniotis' linguistic abilities, credentials, acumen, or intelligence to conclude that his analysis can be boiled down to those three salient aspects.  Before providing my response, let's see what else Sayers offers:

So I hereby challenge those of the Anglo Sanhedrin who desire to delete the Comma, such as James White, Dan Wallace, Barry Hofstetter, James Snapp Jr, Stephen Boyce, Bill Brown, Bart Ehrman, Elijah Hixson, etc, to refute the claims of this top Greek linguist, who has basically just confirmed that the Greek grammatical argumentation that myself (Nick Sayers), Steven Avery, Will Kinney, Edward Hill, Jack Moorman, and many other TR/KJV people hold to, is not only correct but that the Comma is also linguistically justified on the pattern of “syntactic parallelism”.

I don't think that Sayers has correctly understood Babiniotis, if he thinks that Babiniotis is endorsing anyone else's "Greek grammatical argumentation."  Then again, I don't have access to the additional documentation that presumably Sayers himself has.  Suffice that in the released material, that is not what Babiniotis said in the published correspondence.

The bigger issue, however, is what was not considered by Babiniotis, but what was not considered by Babiniotis: is there another justification for the use of the masculine gender in 1 John 5:8, even without the justification of syntactic parallelism?

In other words, the big question is why John would refer to the three witnesses using the masculine gender and not using the neuter, even in the absence of 1 John 5:7.  There is a better explanation for why John referred to the three witnesses using the masculine gender: although the nouns themselves are not masculine, they are being anthropomorphized as witnesses.  An alternative explanation is that although the nouns themselves are not masculine, they are to be understood analogically as referring to the three persons of the Trinity.  

Unfortunately, there is no evidence of Babiniotis considering these alternative explanations for the violation of the gender agreement rule. Had Babiniotis done so, perhaps he would simply agree that these considerations may likewise trump the gender agreement rule. 

The most likely explanation is that John means to evoke the "three witnesses" rule in the Mosaic law, which both Jesus and Paul reference:

  • Deuteronomy 17:6 At the mouth of two witnesses, or three witnesses, shall he that is worthy of death be put to death; [but] at the mouth of one witness he shall not be put to death.
  • Deuteronomy 19:15 One witness shall not rise up against a man for any iniquity, or for any sin, in any sin that he sinneth: at the mouth of two witnesses, or at the mouth of three witnesses, shall the matter be established.
  • Matthew 18:16 But if he will not hear [thee, then] take with thee one or two more, that in the mouth of two or three witnesses every word may be established.
  • 2 Corinthians 13:1 This [is] the third [time] I am coming to you. In the mouth of two or three witnesses shall every word be established.
  • 1 Timothy 5:19 Against an elder receive not an accusation, but before two or three witnesses.
  • Hebrews 10:28 He that despised Moses' law died without mercy under two or three witnesses:

Assuming that this is indeed John's intent, then the use of the masculine as consistent with treating these witnesses as people.

There is also possible precedent for doing something similar in Psalm 89:37 (Septuagint numbering 88:38): καὶ ὡς ἡ σελήνη κατηρτισμένη εἰς τὸν αἰῶνα καὶ ὁ μάρτυς ἐν οὐρανῷ πιστός διάψαλμα

In this place, witness (μάρτυς) is masculine, whereas moon (σελήνη) is feminine. One might argue, however, that the antecedent reference witness is making here should be taken as throne (θρόνος), which is masculine.

There are at least two other cases of impersonal witnesses being referenced in the Septuagint, where there is a gender agreement mismatch between the witness and the word that the witness describes. 

Septuagint Joshua 22:34 provides a first example of a non-personal witness:

καὶ ἐπωνόμασεν Ἰησοῦς τὸν βωμὸν τῶν Ρουβην καὶ τῶν Γαδ καὶ τοῦ ἡμίσους φυλῆς Μανασση καὶ εἶπεν ὅτι μαρτύριόν ἐστιν ἀνὰ μέσον αὐτῶν ὅτι κύριος ὁ θεὸς αὐτῶν ἐστιν

Note that altar (βωμὸν) is masculine, but witness (μαρτύριόν) is neuter.

Septuagint Joshua 24:27 provides a second example of a non-personal witness:

καὶ εἶπεν Ἰησοῦς πρὸς τὸν λαόν ἰδοὺ ὁ λίθος οὗτος ἔσται ἐν ὑμῖν εἰς μαρτύριον ὅτι αὐτὸς ἀκήκοεν πάντα τὰ λεχθέντα αὐτῷ ὑπὸ κυρίου ὅ τι ἐλάλησεν πρὸς ἡμᾶς σήμερον καὶ ἔσται οὗτος ἐν ὑμῖν εἰς μαρτύριον ἐπ᾽ ἐσχάτων τῶν ἡμερῶν ἡνίκα ἐὰν ψεύσησθε κυρίῳ τῷ θεῷ μου

Note that stone (λίθος) is masculine but witness (μαρτύριον) is neuter.


Note about content:

The content of this article (at least in part), appeared previously on my youtube channel (here).  The video may contain some additional content not captured in this post, and - of course - vice versa.

Timothy Decker has posted a very interesting item on the same subject, which can be found here: (link to post).


Sunday, July 12, 2026

Responding to Jonathan Sheffield's Comments on the Johannine Comma (on C Jay Cox's show)

C Jay Cox (CJC) in Un-Apologetics Ep.#67: Talking Textual Criticism with Jonathan Sheffield came to the topic of 1 John 5:7 around 1 hour and 13 minutes into the presentation (link to start of discussion).  The following is lightly cleaned-up transcript of the question and answer, interspersed with my comments.

Question from CJC:

I’ll hold off on the wrap-up really quick just to ask very briefly about 1 John 5:7. I’m just going to read it really quickly here for the people:

“For there are three that bear record in heaven, the Father, the Word, and the Holy Ghost: and these three are one.”

The common objection is that this first appears in the works of Erasmus around the early 1300s. Is that a fair assessment as far as what we have in the historical record? Obviously, if you believe that it goes before then, then you wouldn’t think it’s a fair assessment in its totality. But as far as the historical record, does anybody reference it before then? Is there any manuscript evidence before then?

Erasmus was not around in the 1300s.  Erasmus famously introduced a form of the Comma into his third edition in AD 1522 (he had not included it in his first two editions).  Possibly there was some kind of conflation on CJC's part, because the oldest known manuscript with an insertion into the Greek from the Latin is GA 629, which is dated to AD 1362–1363.  GA629 is a Greek-Latin diglot, and there are multiple differences between the reading found in GA629 and the reading now viewed as the "TR" reading, most notably the absence of Greek articles, which is evidence of back translation from the Latin.  

Erasmus's Third Edition, showing the absence of Greek articles:

(Novum Testamentum omne (C.2.9), 596/643)

The TR reading first appears in Erasmus' fourth edition (1527), based -- as far as anyone can tell -- on Erasmus' conjecture of how to improve the reading he first published in his third edition (1522).

On the other hand, no one who is familiar with the evidence would say that this Latin variant first appears either in the works of Erasmus or GA629.  Instead, of course, this Latin variant shows up first in Latin.  There are examples of Latin manuscripts with such a reading that significantly predate the 1300s.  The earliest identifiable evidence of some related variant being possibly as early as the 300s.  Some have argued that it may have appeared in Latin as early as the late 100s, though the evidence for that idea falls short of compelling.

Jonathan Sheffield:

Yes, there is. That is the way they kind of detract and try to say, you know, the King James Bible editors added it in, or that it was Erasmus where it first showed up.

In the case with Erasmus, it wasn’t in his first edition, which prompted a response from the team of Cardinal Jiménez, who reached out to him and said, “Hey,” because in the [Complutensian] Polyglot it was included. And they actually provided citations for why they included it in their documents. So that is not the first case.

Jacobus Stunica (aka Zuniga) was part of the Complutensian team, and did publish a response to Erasmus' New Testament. Sheffield is a bit vague in his explanation here, but as we have discussed in a previous post (link to post), Stunica acknowledged that the Greek manuscripts do not have this reading but insisted that the Latin manuscripts maintain the correct reading, citing Jerome in support of his position. It turns out that Stunica was citing Ps-Jerome and a significantly corrupted version of Ps-Jerome at that (as explained here).  

Jonathan Sheffield:

Actually, we have two allusions very early on from the North African church, both with Tertullian and with Cyprian, that appear to hold the passage. But definitive quotes we have not only in Spain in the fourth century, but we actually have it used at an official council in the West, responding to the Goths, who were Arians.

The council was called by Huneric, the Vandal king, who was in support of the Goths, or the Arians in the West. He called the council and wrote a letter to all the Trinitarian bishops of the North African province, and we’re talking about Spain and all those little areas and islands around North Africa, to convene a council in 484 and to go to Scripture to defend their homoousian faith.

Let's break this down into four: Tertullian, Cyprian, Spain in the 4th Century, and Victor of Vita (author of the book against the Vandals, which Sheffield is indirectly citing).

As to Tertullian, there are at least three different works that are sometimes cited as allegedly showing reliance on the Johannine Comma.  The first is De Baptismo (On Baptism), in which Tertullian refers to the Father, Son, and Holy Ghost as "three witnesses" that are united in the Church: "Moreover, after the pledging both of the attestation of faith and the promise of salvation under three witnesses, there is added, of necessity, mention of the Church; inasmuch as, wherever there are three, (that is, the Father, the Son, and the Holy Spirit,) there is the Church, which is a body of three."  (On Baptism, Chapter 6)  The second is De Pudicitia (On Modesty), in which the Church is similarly said to unity the three: "For the very Church itself is, properly and principally, the Spirit Himself, in whom is the Trinity of the One Divinity — Father, Son, and Holy Spirit. (The Spirit) combines that Church which the Lord has made to consist in three." (On Modesty, Chapter 21)

One challenge to viewing these as an allusion to the Johannine Comma is that the church as the unity of the Father, Son, and Spirit is not really a suitable match to the usual readings of the Johannine Comma.  Moreover, in the case of On Baptism, the "three witnesses" is taken either from Paul (2 Corinthians 13:1; Cf. 1 Timothy 5:19 and Hebrews 10:28) or Christ (Matthew 18:16) or possibly, though less likely, from Moses (Deuteronomy 17:6 & 19:15). 

A third passage that is sometimes cited is Tertullian's, Against Praxeas, in which Tertullian states (Against Praxeas, Chapter 25): "These Three are one [essence], not one [Person], as it is said, I and my Father are One, (John 10:30) in respect of unity of substance not singularity of number."  While this translation may obscure the point, Tertullian's Latin is: "qui tres unum sunt, non unus".  Tertullian is relying on the difference between the neuter and masculine, a difference that also exists in his Latin of John 10:30.  

The major problem for the theory that this is an allusion to the Johannine Comma is as follows: why not quote the entirety of the text if Tertullian is referring to something from 1 John?  The chapter in question contains numerous quotations from John's gospel: why then wouldn't the epistle be quoted if a helpful statement were found there?  So, it seems that instead Tertullian is explaining the unity of the Trinity, not quoting a verse that allegedly supports his conclusion.  

Turning to Cyprian of Carthage, James Snapp (source) provides this succinct explanation: 

In his Treatise on the Unity of the Universal Church (1:6), Cyprian says: “Dicit Dominus, ‘Ego et Pater unum sumus,’ et iterum de Patre et Filio et Spiritu sancto scriptum est:  ‘Et tres unum sunt.’”  In English:  “The Lord says, ‘I and the Father are one,” and again, it is written of the Father and Son and Holy Spirit, ‘And these three are one.’”

This is a quotation, not an allusion.  The use of the formula, "it is written," suggests that Cyprian is referencing Scripture, not Tertullian (or another merely human author).  The question remains, however, whether Cyprian is referencing the shorter original reading or the interpolated Latin reading.  The former is possible, if Cyprian believes that the spirit, blood, and water are references to the Father, Son, and Holy Spirit.  Cyprian does not explain, so it is difficult to be sure.  On the other hand, again, if the interpolation were present in Cyprian's text, why does he not quote it more fully?  Why say that it is about the Father, Son, and Spirit instead of quoting "Father, Word, and Spirit"?  It's hard to find a good answer to that question, and in this very brief discussion, Sheffield does not offer one.

Turning to Spain in the fourth century, we have what is generally viewed as the earliest clear reference to some form of the Comma.  As discussed in a previous post (link), this form of the comma has a few notable differences, especially that it says that the Father, Word, and Spirit are one in Christ Jesus.  Also, the author who provides this quotation is someone who did not hold to proper Trinitarian doctrines.

Finally, we turn to the first evidence of a shorter form of the comma that became more widespread in medieval Europe.  This is evidence is from a work by Victor of Vita, who records persecution by Huneric, including a time when Huneric is said to have summoned 466 (or so) bishops to Carthage, in an effort to make them conform to the Arian religion of the Vandals.

Huneric did not call them to "convene a council" as that expression is usually used.  The homousian bishops were, instead, essentially being put on trial.  The synod was run by the Vandal king's bishop of choice, a man named Cyrila.  There was an offer to hold a debate between the Vandal bishops and the homousian bishops.  The homousian bishops of North Africa selected ten representatives to attend the debate.  However, this offer of debate was declined.  Nevertheless, Victor says that four bishops had prepared a written treatise on the beliefs of the homousians.  Victor includes a version of this document in his account, and his version of that document (as best as it has been critically reconstructed) includes a reference to a form of the Comma.  

The Vandals invaded North Africa via Spain at the start of the 5th century, but I'm not sure whether any of the bishops summoned to Carthage were from Spain.  Huneric's territory did not, as far as I can tell, include Spain in 484, and he only summoned bishops from his territory.

While Vandals and Goths are related, they were different Germanic tribes.

Jonathan Sheffield:

So the Trinitarian North African bishops came to that council with a written confession, not only in their own language but in the language of the Goths and other dialects, and presented a specific quote from John, referencing the Epistle of John, where he quotes 1 John 5:7.

So the bishops of North Africa crafted this statement in response to the Arians of the West, the Gothic Arians, and used this specific passage to defend the Trinitarian position. And this is a council of over 400 bishops in attendance.

So the question is: we have a major council that is quoting this passage against the Arians. We know the type of text that the Arians used, so why would the North African bishops use something that was questionable, which would have meant their death over there in North Africa, if the passage was disputed?

The treatise cites John the Evangelist, without specifying whether it was in John's first epistle or somewhere else.  However, it seems reasonable to think that the author meant to refer to John's first epistle.

The treatise was not written in multiple languages: it was written in Latin.  Latin, however, was not the language of the Vandals.  In fact, the reason Cyrila gave (according to Victor) for declining to hold a debate was that he didn't know Latin.

Victor does not say that the treatise was crafted by all the bishops, but attributes the treatise to four bishops.  As the treatise does not seem to have circulated apart from Victor's work, we have no way to tell how much Victor himself contributed to the work. Indeed (as discussed in this previous post), the discussion of the Comma breaks the flow of the work, suggesting that it may have been a revision (Victor would be the most obvious source of this revision).  

There is no evidence that using something questionable or disputed would have "meant their deaths".  We also do not know what type of text the Vandals used.  Very little of Vandalic has survived to the present time, the longest sentence being  "eils ... scapia matzia ia drincan!" (source) Even if we were to assume that the Vandals read the Gothic Bible, John's epistles (if they were ever translated into Gothic) have not survived.  

On the other hand, we do know that Augustine who died during the Vandal siege of Hippo in 430, had a text of 1 John without the Latin interpolation (link to example of Augustine's discussion of 1 John 5).  So, it is reasonable to suppose that if the Vandals had taken up Latin texts from the places they conquered, they would have found at least some without the interpolation.

Likewise, it is unreasonable to call this a "major council."  There was no meaningful participation in person by any of the homousian bishops.

Jonathan Sheffield:

And if we look back to the allusions of Cyprian and Tertullian, that follows that same textual line of the North African bishops. They had no doubt that this passage was Scripture at all.

The common retort against the North African council is, “Well, this passage was sort of made up because they looked at verse 8 and John, and it became sort of a version of verse 8 and became verse 7.” So they have to make up these wild conspiracies to generate verse 7.

Sheffield seems to be conflating a few things.  The question is less about the council or even just Victor specifically, and more about how such an interpolation could come to be.  The answer to that question is that it can come to be by an unreliable (or at least, not strictly literal) translator providing an interpretive gloss on the three witnesses that are actually mentioned in the text: the spirit, the blood, and the water.  This fault seems to have been identified at least as early as the 6th century (see the original reading of the Ps-Jerome prologue).  

Jonathan Sheffield:

The passage is a majority reading in the West. So while the Greek evidence is very—it has very little testimony to it in the Greek—when the official Greek Orthodox churches, I’m talking about the official churches of Alexandria, North Africa, and Constantinople, all met in 1904 to create their standardized Greek text for use throughout the Greek Orthodox Church, they discussed the issue of 1 John 5:7.

That is not in their textual tradition. That is not basically witnessed by the Byzantine text form. The holy bishops of the Greek Orthodox Church voted this passage to be included in the 1904 [text].

So when all the magisterial Reformers, basically all the magisterial Reformers except for Luther, all basically came to the same conclusion that this passage was witnessed by the ancient church and included in their editions of the TR. It’s a majority reading in the West, and when the Greek Orthodox Church met and discussed this issue, they included this passage.

The only people who seem to reject this passage are the textual critics based in the German rationalism of the late eighteenth and seventeenth century. So it’s not the official churches rejecting this passage. It’s basically the critical-text proponents of German rationalism.

This comment about "the only people who seem to reject this passage" is unsupportable.  It's also misleading to say that it is "a majority reading in the West."  It may well be a majority in the later Vulgate manuscripts.  It is not a majority reading in the oldest Vulgate manuscripts.  If you survey the Latin manuscripts from the 6th to the 10th centuries (as I did in this post), none of them have the Comma as it was ultimately imposed on the Greek text:

  • 22 manuscripts originally lacked the Comma (many of these were later deliberately altered to include it)
  • 1 manuscript had the "son" variant (i.e., not "Word" but "Son")
  • 1 manuscript without "in earth" and with the comparative variant
  • 1 manuscript with the "in Christ Jesus" variant

So, it's misleading at best to make comments about the "majority reading" in the West.  The earliest Latin exegesis of 1 John 5 (from an anonymous Irish author around AD 680) does not have the interpolated reading. Neither did the Venerable Bede in the 8th century.