Verse 10 does two things in two clauses, and the seam between them is the hinge of the whole paragraph.

The first clause converts the accusation of v. 9 into a stated fact. Verse 9 was a pair of verbs with the same instrument (ἐν αὐτῇ … ἐν αὐτῇ, ‘by the same tongue’); v. 10a restates it with the verbs turned into nouns and the instrument turned into a source: out of the same mouth comes out blessing and curse. Three features carry the weight. The verb is singular against two subjects, so the two products are presented as one outflow. The nouns are anarthrous and qualitative — blessing-as-such and curse-as-such, not two occasions. And the preposition has shifted from ἐν (instrument) to ἐκ (source), which is what sets up the spring of v. 11 and the tree of v. 12.

The second clause is the verdict, and it is remarkably restrained. James does not write ‘this is wicked’ or ‘repent’. He uses οὐ χρή — a hapax in the New Testament, an impersonal verb of fitness at home in Greek moral and sapiential prose — and says that these things ought not to be happening. The register is that of a maxim about the natural order of things, which is precisely why vv. 11-12 immediately argue from springs, figs, and vines. The infinitive is γίνεσθαι, a verb of becoming, not εἶναι: the complaint is not that a state exists but that this keeps happening.

The vocative ἀδελφοί μου sits inside the verdict rather than before it, and that placement is pastoral: the sentence lands hardest on the family the writer belongs to.

Proposed — pending reviewRalph P. Martin, James, Word Biblical Commentary 48 (Waco: Word, 1988)

Two shifts from v. 9 are deliberate and both are load-bearing.

στόμα replaces the γλῶσσα of vv. 5, 6, and 8. James had the tongue in hand and switched to the mouth. The likeliest reason is that στόμα is an aperture — the natural pair for ὀπή (‘opening’) in v. 11 — whereas γλῶσσα is an organ. The switch is the joint that lets the argument move from anatomy to hydrology. Retain the concrete noun; ‘what you say’ or ‘the same lips’ dissolves the image the next verse depends on.

ἐκ replaces the instrumental ἐν αὐτῇ of v. 9. Per the standing policy the two prepositions are kept distinct in English (ἐκ = source, ἐν = sphere/instrument), and here the distinction is the argument: a mouth that is merely the instrument of two acts is a moral problem, while a mouth that is the source of two opposite streams is a natural impossibility. Verse 11 makes that explicit with βρύει.

τοῦ αὐτοῦ is article + αὐτός in attributive position — the identity-adjective, per the standing entry (τὸ αὐτὸ φρονεῖν, Phil 4:2; τὰ αὐτά, 1 Pet 5:9). It asserts identity, not similarity: not two comparable mouths but one mouth. The same phrase recurs in v. 11 as ἐκ τῆς αὐτῆς ὀπῆς, and one English wording is mandatory at both points.

Both nouns are anarthrous, nominative, and singular, and both correspond to a finite verb in v. 9.

εὐλογία is the LXX noun for the blessing pronounced (εὖ + λόγος), covering both the act of blessing and the benefit conferred (Gen 27:36; Deut 11:26; Rom 15:29; Eph 1:3). Here the act-sense governs, since it answers εὐλογοῦμεν.

κατάρα is its exact counterpart, the standing LXX term for the curse of the covenant sanctions (Deut 11:26 — ἰδοὺ ἐγὼ δίδωμι ἐνώπιον ὑμῶν σήμερον εὐλογίαν καὶ κατάραν; Deut 27-30 throughout; cf. Gal 3:10, 13). The pair εὐλογία/κατάρα is not James’s invention; it is Deuteronomic vocabulary, and its presence here means the tongue’s two products are being named in the register of covenant sanction rather than of politeness and rudeness. The English must therefore keep both nouns strong: not ‘praise and complaint’, not ‘good words and bad words’.

The anarthrous form is qualitative — blessing and curse as kinds, not particular utterances. Do not supply the article. Reading tiers may render κατάρα as ‘cursing’ where English idiom prefers a gerund alongside ‘blessing’, but the noun is a noun and the literal tier keeps ‘curse’.

The verb is singular with two coordinated nominative subjects. Greek permits agreement with the nearer subject or, as here, presentation of the coordinated pair as a single unit; the construction is regular and needs no textual explanation. English concord forbids it, so a plural must be used — but per the standing policy on singular verbs with coordinated subjects the Greek agreement is recorded rather than compensated, because it is doing work: the two products issue as one outflow from one aperture.

The present is gnomic-durative: this is what characteristically happens, not a report on a single incident. Render with a simple English present.

ἐξέρχεται is a plain verb of coming out, and the compound’s ἐξ- answers the ἐκ of the prepositional phrase — a doubling of the source-language that the next verse’s βρύει (‘gush’) intensifies. Retain a motion-verb: ‘comes out’ or ‘proceeds’ (the latter in liturgical register). Exclude ‘flows’ in the reading text, which imports the water-image before James introduces it, and exclude ‘you use the same mouth to…’, which recasts an intransitive statement about the mouth as a transitive statement about the speaker.

χρή is a hapax in the New Testament and an unusual word for this literature. It is an impersonal, indeclinable verb of the Greek moralists and the sapiential tradition, meaning ‘it is needful, it is proper, one ought’, construed with an accusative subject plus infinitive. Its register is the register of the maxim.

The choice against the alternatives available to James is the point. δεῖ (‘it is necessary’) would have asserted logical or divine necessity; ὀφείλει would have named a debt or obligation on a person; a prohibitive μή plus imperative would have issued a command. James wrote none of these. οὐ χρή with a factual οὐ states that the case fails to answer to what is fitting — and it is the vocabulary of natural propriety, which is exactly why vv. 11-12 argue from springs and fig trees rather than from Scripture or the will of God.

Note also that the negative is οὐ, not μή. Per the standing entry οὐ negates as a matter of asserted fact; this is a statement about how things stand, not a qualification or a prohibition.

Proposed — pending reviewLuke Timothy Johnson, The Letter of James, Anchor Bible 37A (New York: Doubleday, 1995)

ταῦτα is the accusative subject of the infinitive and is anaphoric — pointing back to the double outflow just described, not forward. Retain the bare demonstrative per the standing policy; ‘such things’ generalizes and ‘this behavior’ supplies a noun the Greek withholds.

οὕτως is anaphoric here (‘in the way just described’), which is unusually clear for an adverb that is directionally neutral in Greek. Per the standing entry it is rendered ‘in this way’, equally neutral in English, and never dropped as pleonastic. Its presence is what makes the clause a verdict on the manner rather than on the acts taken singly: James does not say blessing ought not to happen, nor that cursing ought not to happen, but that these ought not to happen like this — out of one mouth.

γίνεσθαι is the crux of the clause and the most frequently flattened word in the verse. James chose a verb of becoming over εἶναι, and the present infinitive is durative. The claim is therefore about ongoing occurrence, not about an existing state of affairs. Per the standing γίνομαι policy (‘come to be / become’, never ‘be’), the literal tier keeps ‘to come to be’ and the study tier marks the aspect (‘to keep coming to be’). The familiar ‘these things ought not so to be’ is retained in declared liturgical register, where the English tradition has fixed it, but in modern registers ‘should be so’ is the furthest concession, and ‘this should not happen’ is preferable where flow permits because it keeps the event-sense.

The whole construction — impersonal verb, accusative subject, present infinitive — is a single unit, and the vocative is inserted inside it, between χρή and ταῦτα. That interruption is not accidental; see the next section.

Proposed — pending reviewMartin Dibelius, James, rev. Heinrich Greeven, trans. Michael A. Williams, Hermeneia (Philadelphia: Fortress, 1976)

The vocative recurs eleven times in James and marks the seams of the argument (1:2, 16, 19; 2:1, 5, 14; 3:1, 10, 12; 4:11; 5:12, 19). Per the standing policy it is rendered identically at every occurrence and never varied for style, the possessive μου is always retained, and the masculine plural stands as written with the mixed referent noted — James himself supplies the internal evidence at 2:15 (ἀδελφὸς ἢ ἀδελφή), which shows he marked the feminine when he chose to.

What is distinctive here is the position. James places the address inside the impersonal construction, splitting οὐ χρή from its accusative subject ταῦτα. He does the same at 3:12 and 1:16. The effect is that the verdict is already in the air before the offense is named again, and the family relation is interposed between the two. Chrysostom’s general observation on Paul’s vocatives — that a name interposed at the point of rebuke keeps the rebuke from becoming an indictment — applies exactly. Reading tiers may relocate the vocative to the head of the clause for English flow, as here, but the displacement should be recorded, and the study tier keeps it in its Greek slot with dashes.

The pairing εὐλογία καὶ κατάρα is not free composition. It is the fixed formula of the Deuteronomic covenant sanctions in the LXX: ἰδοὺ ἐγὼ δίδωμι ἐνώπιον ὑμῶν σήμερον εὐλογίαν καὶ κατάραν (Deut 11:26), developed through the Gerizim/Ebal ceremony (Deut 27:11-26) and the long alternatives of Deut 28-30, and recalled in Josh 8:34 and Sir 3:9.

In Deuteronomy the two are set before Israel as an exclusive choice — one road or the other, and the whole force of the covenant form is that they cannot both be taken. That is what makes James’s sentence an offense rather than merely an inconsistency: the two things that Deuteronomy makes mutually exclusive are issuing from the same aperture at the same time.

The substrate also explains the register of v. 9. Cursing a human being made καθʼ ὁμοίωσιν θεοῦ (Gen 1:26 LXX) is not rudeness; it is the invocation of covenant sanction against a bearer of the divine likeness. Which is why James answers it in v. 10b not with a heavier curse but with a quiet appeal to what is fitting — and then, in vv. 11-12, with the created order itself, which never does this.

NA28 prints the verse without significant variation, and no reading here affects the sense.

The minor movements in the tradition are all in the direction of smoothing. Some witnesses attach a connective at the head of v. 10b, easing the asyndeton between the statement of fact and the verdict; NA28’s abrupt juxtaposition is the harder and better-attested reading, and per the standing asyndeton policy no ‘and’ or ‘but’ is supplied in English — the abruptness is the rhetoric. There is also predictable fluctuation over the impersonal χρή, an unfamiliar word in this literature, which invites substitution of the far commoner δεῖ; the retention of χρή by the principal witnesses, against the pressure of its rarity, is precisely what makes it secure.

The punctuation between the two halves of the verse is editorial. The earliest majuscules are unpunctuated, so the full stop after κατάρα is a modern judgment about where the statement ends and the verdict begins. Nothing in the sense depends on it, but the fact should be recorded rather than presented as manuscript evidence, per the discipline applied throughout this corpus.

The early reading of the verse consistently fastens on the single source, not on the two products.

The Latin tradition renders οὐ χρή with non oportet (‘it is not proper’), which is a good match: an impersonal of fitness rather than of necessity, keeping the maxim-register that δεῖ would have lost. The Vulgate’s ex ipso ore procedit benedictio et maledictio likewise keeps the singular verb and the source-preposition intact.

Bede, commenting on the catholic epistles, reads vv. 9-12 as a single argument about the impossibility of a divided outflow and takes the vocative as evidence that James addresses the fault as one within the household of faith rather than as the mark of outsiders. That is the right instinct grammatically: the second-person plural of v. 9 (εὐλογοῦμεν … καταρώμεθα) is in fact first-person plural — James includes himself — and the vocative here confirms it.

The wider Greek tradition on this paragraph tends to read the mouth as a channel whose character is determined by its spring, which is why the fathers habitually cite v. 11 in explanation of v. 10 rather than the reverse. That order of explanation is the author’s own.

Proposed — pending reviewBede the Venerable, Commentary on the Seven Catholic Epistles, trans. David Hurst, Cistercian Studies 82 (Kalamazoo: Cistercian Publications, 1985) · Biblia Sacra iuxta Vulgatam Versionem, ed. Robert Weber and Roger Gryson, 5th ed. (Stuttgart: Deutsche Bibelgesellschaft, 2007)