Paul is under oath-pressure. He is proving that his gospel did not come from Jerusalem, and the proof is an itinerary: three years away (v. 18), then a fifteen-day visit to Cephas, and — this verse — no one else. The verse is a limiting clause, and nearly every word in it is doing restrictive work.

Three things repay attention.

1. ἕτερον, not ἄλλον. Paul has just used both words against each other at 1:6-7 (ἕτερον εὐαγγέλιον, ὃ οὐκ ἔστιν ἄλλο). Whether the distinction is still live twelve verses later is contested, but it cannot simply be assumed dead.
2. The exception is syntactically ambiguous. Does εἰ μή except James from the apostles (“no other apostle except James”), or from the seeing (“I saw no other apostle, but I did see James”)? The Greek permits both, and the choice bears on whether Paul counts James among the apostles. This is a genuine crux with serious defenders on each side, and the rendering must not settle it.
3. τὸν ἀδελφὸν τοῦ κυρίου is a plain kinship phrase that has carried enormous doctrinal weight since the fourth century. The lexical work and the reception history must be kept rigorously apart.

The verse also contains Paul’s only use in the letter of a bare verb of seeing where he had just used the deliberate ἱστορῆσαι — a contrast the English should preserve.

ἕτερος is the counterpart-word: the other of two, or an other of a different sort. ἄλλος adds a further item of the same kind. BDAG records both the distinction and its erosion in Koine, and the corpus glossary already fixes ἕτερος as “other (the other party)” with the contrast to be kept visible where it is exegetically live.

It is demonstrably live in this letter. At 1:6-7 Paul writes εἰς ἕτερον εὐαγγέλιον, ὃ οὐκ ἔστιν ἄλλο — a sentence that collapses unless the two words differ. Whether that sharpness carries into v. 19 is another question: by the first century ἕτερος was frequently doing nothing more than ἄλλος (cf. Luke 9:59, 61; Acts 2:13), and a verse of travel narrative is weaker ground for pressing it than a verse of polemic.

The rendering “other” is retained because English “other” carries the same latitude. “Another of a different kind” over-reads; “anyone else” under-reads and erases the lexeme.

Built onbdag · bdf

The corpus already distinguishes two uses: ἀπόστολος of one commissioned by Christ, and ἀπόστολος qualified by a church genitive, where the sense is a congregation’s commissioned envoy (Phil 2:25). Here the genitive is partitive (τῶν ἀποστόλων governed by ἕτερον) and the group is the Jerusalem circle Paul named at v. 17 as τοὺς πρὸ ἐμοῦ ἀποστόλους — those who were apostles before him.

That phrase at v. 17 is important for the present verse: Paul there grants the title to a Jerusalem body and places himself outside its chronological priority while insisting on his own standing (v. 1, οὐκ ἀπʼ ἀνθρώπων οὐδὲ διʼ ἀνθρώπου). So τῶν ἀποστόλων here is a definite, bounded group, not an open category — consistent with the corpus policy that the articular plural marks a contextually defined set.

What the verse does not do is define the boundaries of that group. Whether James stands inside it is precisely what the syntax leaves open.

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εἰ μή is the fixed exceptive idiom, not a live conditional — the glossary already forbids rendering it “if not.” The question is its scope.

Two constructions are grammatically available:

1. Exception from the noun phrase. εἰ μή restricts ἕτερον τῶν ἀποστόλων: “I saw no other of the apostles except James” — i.e. James is one of the apostles, and the only one besides Cephas whom Paul met.
2. Exception from the whole clause. εἰ μή restricts the negated verb: “I saw no other of the apostles; I did, however, see James” — i.e. James is named as someone Paul met who was not among the apostles.

The accusative Ἰάκωβον is sometimes adduced for (1), on the ground that it is attracted to the case of the thing excepted. But this proves little: in an elliptical εἰ μή clause the excepted term naturally takes the case it would have had with the governing verb, which here is accusative either way.

The apparatus leaves this open, and the rendering is built to do the same: “But I saw no other of the apostles — only James, the Lord’s brother” is hospitable to both, where “except James, who was an apostle” and “though I did see James, who was not” each adjudicate.

Built onbdf · bdag

Proposed — pending reviewJ. Louis Martyn, Galatians, Anchor Bible 33A, New York: Doubleday, 1997

Verse 18 says Paul went up ἱστορῆσαι Κηφᾶν — a deliberate, unusual verb (a NT hapax) covering inquiry, getting acquainted with, going to see someone with a purpose. Verse 19 uses the colourless εἶδον, the ordinary aorist of seeing.

The switch is almost certainly deliberate and should survive in English. Paul concedes a purposeful visit to one man and then denies even laying eyes on anyone else. Rendering both verbs “visit” or “see” flattens a contrast Paul built; the modern line therefore keeps a plain verb of sight here.

What εἶδον does not say is how long or how substantively Paul saw James. Readings that make this a second consultation import content the verb withholds.

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A plain kinship phrase in apposition, identifying which James is in view — necessary, since the name was common and at least two other bearers are known in the early circle (Zebedee’s son, by this date executed per Acts 12:2; and the son of Alphaeus).

Three lexical points.

ἀδελφός. The Greek noun’s primary sense is a male sibling. Hellenistic Greek can extend it to wider kin (as Hebrew אָח regularly does, and as LXX usage reflects — Gen 13:8 of Lot, Abraham’s nephew), and the corpus policy on kinship vocabulary requires that the range be footnoted where genuinely ambiguous rather than narrowed in the text. It cannot, however, be assumed that the extended sense is in play simply because it is available; Greek had ἀνεψιός (Col 4:10) and συγγενής for cousin and kinsman.

τοῦ κυρίου. Per §1 the Greek κύριος is rendered “Lord” and never converted to the divine name. The referent here is Jesus, which is itself notable: Paul identifies a man by his family relation to one he elsewhere calls Lord without any apparent discomfort, and he does the same at 1 Cor 9:5 (οἱ ἀδελφοὶ τοῦ κυρίου).

The article. τὸν ἀδελφόν is articular and appositional — “the brother,” the known one — not a classifying “a brother of the Lord.” It presupposes that the Galatians know who is meant.

Built onbdag · bdf

Proposed — pending reviewJ. B. Lightfoot, Saint Paul's Epistle to the Galatians, 10th ed., London: Macmillan, 1890 (dissertation: “The Brethren of the Lord”) · Richard Bauckham, Jude and the Relatives of Jesus in the Early Church, Edinburgh: T&T Clark, 1990

The text is stable. NA28 prints ἕτερον δὲ τῶν ἀποστόλων οὐκ εἶδον, εἰ μὴ Ἰάκωβον τὸν ἀδελφὸν τοῦ κυρίου without a marked variation unit of substance.

Two minor matters worth recording:

• Some witnesses offer εἶδον / ἴδον orthographic variation, which is phonetic and carries no weight.
• A handful of later witnesses add Ἰησοῦ or otherwise expand τοῦ κυρίου; the expansion is the familiar scribal filling-out of a divine title and is secondary.

The punctuation is editorial throughout. The earliest majuscules are unpunctuated, so the comma before εἰ μή — which visually favours the clausal-exception reading — is a modern editorial judgment and must not be cited as manuscript evidence for the syntax. This is the same discipline the corpus applies at Gal 5:11 (ἄρα/ἆρα), Gal 6:15 (τι/τί), and Jas 1:19 (Ἴστε).

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Galatians 1:11-24 is a single sustained proof, and this verse is one of its load-bearing denials. The structure runs: the gospel is not κατὰ ἄνθρωπον (v. 11); I did not receive it from a human being (v. 12); here is my previous life (vv. 13-14); God revealed his Son (vv. 15-16a); and then a chain of negatives — εὐθέως οὐ προσανεθέμην σαρκὶ καὶ αἵματι (16b), οὐδὲ ἀνῆλθον εἰς Ἱεροσόλυμα (17), ἕτερον … οὐκ εἶδον (19).

The oath that follows immediately (v. 20, ἐνώπιον τοῦ θεοῦ ὅτι οὐ ψεύδομαι) is attached to precisely this stretch of itinerary, which tells us the Galatians had heard a competing account — presumably that Paul’s commission derived from Jerusalem. Verses 18-19 are the maximal concession he can make: one man, fifteen days, and one other person seen.

That concessive shape explains the δέ and the fronted ἕτερον. Paul is not narrating for its own sake; he is minimizing, and the sentence is built to minimize.

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Proposed — pending reviewF. F. Bruce, The Epistle to the Galatians, New International Greek Testament Commentary, Grand Rapids: Eerdmans, 1982

The Greek tradition generally took the verse to include James among the apostles. Chrysostom, in his homilies on Galatians, reads the exception as carving James out of the apostolic company, and finds in Paul’s willingness to name only two men a proof of his independence rather than of his dependence.

Jerome used the verse in a quite different controversy. In Adversus Helvidium he argued that ἀδελφός here must mean kinsman, chiefly on the ground that Scripture elsewhere uses sibling-language of collateral relatives, and he identified this James with James the son of Alphaeus — a chain of identifications that requires several further steps not supplied by the text.

Epiphanius (Panarion 78) argued the step-brother position, appealing to the apocryphal infancy traditions, against Helvidius’ reading on the one side and Jerome’s on the other.

It is worth noting what the Fathers did not dispute: that the man named here is the James who leads the Jerusalem assembly in Acts 15 and Gal 2:9, 12. That identification is early and uncontested.

Proposed — pending reviewJohn Chrysostom, Commentarius in epistolam ad Galatas, PG 61:611-682 · Jerome, Adversus Helvidium de Mariae virginitate perpetua, PL 23:183-206 · Epiphanius of Salamis, Panarion 78 (Against the Antidicomarians), ed. K. Holl, GCS 37, Leipzig: Hinrichs, 1933

• ἕτερον → “other.” Keeps the lexeme visible without pressing the ἕτερος/ἄλλος distinction in a context where its liveness is disputed.
• εἶδον → “saw,” against the ἱστορῆσαι of v. 18, so the switch of verbs survives.
• εἰ μή → “except” (literal) / an em dash plus “only” (modern). Both constructions are rendered hospitably; the dash reproduces in English the same unresolved attachment the unpunctuated Greek has.
• τὸν ἀδελφὸν τοῦ κυρίου → “the brother of the Lord.” Bare kinship noun, bare genitive, article retained. No qualifier (“half-brother,” “cousin,” “relative”) is supplied in any tier, since each adopts one of three contested positions.
• κύριος → “Lord” per §1, with the referent noted rather than substituted.