Type: supporting argument (off-timeline) · Assessment: weak — identifying the apostle “Judas of James” with the Jude who wrote the epistle requires the less-probable reading at every step: the apostle’s name is most naturally “Judas son of James,” while the epistle-writer calls himself “brother of James,” and the writer sets himself apart from the apostles. The epistle’s Jude is far better identified with Jude the brother of the Lord (and of James the Just) — one of the “brethren” the Gospels keep distinct from the Twelve. The apostolic authorship is a harmonizer’s reading the text resists, not one it supports.
Related arguments: the name and identity of Jude — see also Are Thaddaeus, Lebbaeus, and Judas of James one and the same apostle?
Jude, the servant of Jesus Christ, and brother of James, to them that are sanctified by God the Father…
— Jude 1. The claim under test is the traditional identification — made doctrine by Jerome and long standard in the West — that the author of this letter is the apostle of the Twelve variously called Thaddaeus and “Judas of James.” If it holds, the silent tenth apostle turns out to have left a canonical epistle. If it fails, the epistle belongs to a different Jude — Jude the brother of the Lord — and the apostle remains as wordless as the Gospel lists leave him.1
The case rests on the coincidence of two names and a venerable tradition. The names pair up. The apostle is “Judas of James” (Luke 6:16; Acts 1:13), an apostle named Judas standing next to a James; the epistle’s author is “Jude… brother of James” — again a Jude defined by a James. To a harmonizing eye these are the same pair. The tradition is old and respectable. Jerome folded the apostle Judas-of-James, the epistle’s Jude, and the Lord’s brother Judas into a single “man of three names,” and much of the Latin West followed; on that reckoning the apostle and the epistle-writer are simply one man seen from two sides. If the apostle’s genitive is read as “brother of James” — grammatically possible, since a bare genitive can denote a brother — then Luke’s “Judas of James” and the epistle’s “Jude, brother of James” say the very same thing, and the identification follows at once. Cumulatively, the reading lets one honoured name carry both an apostolic office and a canonical letter.2
Every link is the less-likely reading, and the decisive one breaks. “Judas of James” most naturally means “Judas son of James.” The bare genitive Iakōbou ordinarily supplies a father, not a brother — which is why the RV, RSV, and most moderns render Luke 6:16 “Judas son of James.” Only the wish to reach the epistle drives the KJV’s “brother of James” here. The epistle-writer, by contrast, is explicitly a brother of James (Jude 1) — and the James so famous that he needs no further identification is James the Just, the Lord’s brother. So the author is Jude the brother of the Lord, one of the “brethren” named at Nazareth — “James, and Joses, and Simon, and Judas” (Matthew 13:55). And the Gospels keep those brethren apart from the Twelve: they “did not believe in him” (John 7:5), are listed after the Ascension beside but distinct from the apostles (Acts 1:14), and are ranked by Paul as a class alongside “the other apostles” (1 Corinthians 9:5). Most tellingly, the epistle’s author excludes himself from the apostles: he bids his readers “remember… the words which were spoken before of the apostles of our Lord Jesus Christ” (Jude 17) — speaking of the apostles as others, not as his own company. To make the apostle the author, then, one must not only misread his patronymic but also fuse him with the Lord’s brother, reviving the whole cousin-machinery weighed and found wanting elsewhere on this wiki.3
What holds. The doubled name — an apostle Judas linked to a James, an author Jude linked to a James — is a real coincidence, and the traditional identification is neither absurd nor without pedigree. On the bare grammar, “Judas of James” could be construed as “brother of James,” and if it were, the two figures would merge.
What it cannot reach. The identification asks the reader to take the improbable option at every fork: to read a father’s genitive as a brother’s, to enroll the Lord’s brethren among the Twelve against the Gospels’ own habit, and to ignore that the author of Jude places the apostles at arm’s length from himself. The far simpler account — that there were two men named Judas, an apostle “son of James” and a brother of the Lord “brother of James,” and that the second wrote the letter — fits every text without strain, and is the settled judgement of modern scholarship, which assigns the epistle to Jude the Lord’s brother (or to a writer in his name), not to the apostle. The apostolic authorship is a harmonization the evidence resists.4
Weak. That the apostle “Judas of James” wrote the Epistle of Jude held in the Latin West through Jerome’s fusion of the Judases, but it does not hold on its own evidence: the apostle’s name points to a son of James, the epistle-writer names himself a brother of James, and that writer sets himself apart from the apostles. The letter belongs to Jude the brother of the Lord, a distinct man — which leaves the apostle Thaddaeus / Judas-of-James without the epistle, and almost without a trace.
Jude 1 (“Jude… brother of James”); the apostle “Judas of James,” Luke 6:16, Acts 1:13. Jerome’s fusion of the Judases into a “man of three names” is set out on the companion argument page and in his Commentary on Matthew 10.4. ↩
On the grammatical possibility of construing Ioudas Iakōbou as “Judas brother of James,” and the history of the Western identification of the apostle with the epistle-writer, see Richard Bauckham, Jude and the Relatives of Jesus in the Early Church (Edinburgh: T&T Clark, 1990), ch. 1–2; and Bauckham, “The Relatives of Jesus,” Themelios 21.2 (1996). ↩
The bare genitive as paternity (“son of James”), the epistle-writer as brother of James the Just and so a brother of the Lord (Matthew 13:55), and the brethren as distinct from the Twelve (John 7:5; Acts 1:14; 1 Corinthians 9:5): Bauckham, Jude and the Relatives of Jesus, ch. 1. That the author of Jude speaks of the apostles as others: Jude 17. The brethren-vs-Twelve question is weighed at length on the perpetual-virginity timeline (assessment sound). ↩
On the modern consensus assigning the epistle to Jude the brother of the Lord (not the apostle Judas son of James), see Bauckham, Jude and the Relatives of Jesus, ch. 5, and his Jude, 2 Peter (Word Biblical Commentary 50, 1983); a convenient survey in the standard reference article. The parallel fusion of the apostle James son of Alphaeus with James the Lord’s brother is rated weak on its own page. ↩