What were the names of the apostles?

What follows is one scholar’s way of reading this disagreement — a critical-historical view that often concludes the texts genuinely disagree. It draws on the peer-reviewed sources listed below and stands as one position among the answers above, presented for transparency, not as GEBible’s position.

How critical scholarship weighs this: Genuinely disputed among scholars

This summarizes where critical scholarship tends to land on this tension — a report on the field’s center of gravity, not GEBible’s own ruling.

The New Testament preserves four lists of the Twelve — Matt 10:2-4; Mark 3:14-19; Luke 6:13-16; Acts 1:13 — and they agree on a stable core while diverging at the margins. All four open with Simon Peter and include James and John (sons of Zebedee), Andrew, Philip, Bartholomew, Thomas, Matthew, James son of Alphaeus, and Judas Iscariot (the last omitted, naturally, in Acts 1, where the Eleven gather after the betrayal). Two slots vary. First, Matthew and Mark name a Thaddaeus where Luke and Acts have "Judas the brother (or son) of James" (Ioudas Iakōbou). Second, the figure called "the Cananaean" (ho Kananaios) in Matthew and Mark is called "the Zealot" (ho zēlōtēs) in Luke and Acts.

The second divergence dissolves under philological scrutiny and should be conceded as harmonized. "Cananaean" has nothing to do with the land of Canaan or the town of Cana; it transliterates the Aramaic qanʾanaʾ, "the zealous one," which Luke — writing for a Greek readership — simply translated as zēlōtēs. This is a translation artifact, not a conflict of tradition, and critical and traditional scholars alike accept it (Fitzmyer; Davies and Allison). It is the kind of bilingual doubling that pervades the Gospels.

The first divergence is harder. The standard apologetic move (Archer; Geisler and Howe; Carson) is to argue that Thaddaeus and Judas son of James are one man with two names, on analogy with Simon Peter / Cephas / Bar-Jonah or Levi / Matthew. The analogy is not absurd: bilingual Jews of first-century Palestine frequently bore a Semitic name and a Greek or Greco-Roman cognomen, and a disciple named Judas might well have adopted an alternative to avoid confusion with Judas Iscariot. But the proposal has a concrete weakness that critical scholarship (Meier; Bauckham) consistently presses: there is no independent attestation, in any first-century source, that Thaddaeus was ever also called Judas, nor any explanation of the double name. It is a harmonizing inference required by the discrepancy itself, not evidence that resolves it.

The textual tradition makes the situation worse rather than better. At Matt 10:3 the manuscripts cannot agree on the name. The Alexandrian witnesses (Sinaiticus, Vaticanus) read Thaddaios; Codex Bezae (D) and the Old Latin read Lebbaios; and the Byzantine majority text presents the conflated "Lebbaeus who was surnamed Thaddaeus." Metzger's Textual Commentary explains the variants as the work of scribes already trying to bring Matthew into line with Mark and with one another — the apparatus is, in effect, a record of ancient harmonizing activity. NA28 prints Thaddaios as the earliest recoverable reading and treats the others as secondary. The KJV's "Lebbaeus, whose surname was Thaddaeus" reflects the late conflated text, not the earliest one.

Meier's conclusion in A Marginal Jew (vol. 3) is the most economical reading of the whole picture: the precise membership of the Twelve had already become somewhat fluid by the time the Synoptic tradition was written down, and the evangelists were preserving variant local lists. The symbolic number twelve — evoking the twelve tribes of restored Israel — was firm and historically rooted in Jesus' ministry; the exact roster of the lesser-known members was not uniformly transmitted. John, notably, never gives a list at all, though he presupposes the Twelve (John 6:67-71). Eusebius already wrestled with the discrepancy, identifying Thaddaeus with the Thaddaeus of the Abgar legend, which only underscores how early the harmonizing impulse arose.

Where the critical reading lands: partially harmonizable — the Cananaean/Zealot pair is a secure translation equivalence, but the Thaddaeus / Judas-son-of-James substitution rests on an unattested double name and is better explained as variant tradition; the textual apparatus at Matt 10:3 is the receipt of ancient harmonization in progress.