Paul deliberately applies Psalm 94:11 (LXX 93:11) to the self-styled wise whose wisdom has become the subject of his argument. The extant Septuagint text reads that the Lord knows “the reasonings of men” (τοὺς διαλογισμοὺς τῶν ἀνθρώπων), whereas Paul writes “the reasonings of the wise” (τοὺς διαλογισμοὺς τῶν σοφῶν). The substitution of σοφῶν for ἀνθρώπων concentrates the psalm’s universal verdict upon the particular class under discussion in 1 Corinthians 1–3: those esteemed as wise by worldly standards and those within the church tempted to boast in human teachers and intellectual factions. The noun διαλογισμοί (dialogismoi) denotes deliberations, calculations, or inward reasonings, not merely isolated thoughts. God’s present knowledge, γινώσκει (ginōskei), exposes their actual character: they are μάταιοι (mataioi), empty, futile, and incapable of securing the wisdom or standing before God that they claim to provide. Psalm 94:11 itself declares that the Lord knows human thoughts to be breathlike and insubstantial; Paul’s wording does not deny that broader judgment but draws out its relevance to the Corinthian exaltation of the σοφοί. The citation thus follows the preceding quotation from Job 5:13: God both catches the wise in their craftiness and knows their calculations to be futile. This is not a careless alteration of Scripture but a recognizably apostolic contextual citation. Paul retains the psalm’s subject, the Lord, its verb of divine knowledge, and its climactic assessment of futility, while specifying the people whose reasoning his immediate argument addresses. The effect is to exclude every human system of wisdom, including Christian boasting in prominent ministers, from competition with the wisdom God has revealed in the crucified Christ.

Paul’s exception does not restrict interpretation to the tongue-speaker himself; it states the condition under which tongues may serve the same congregational end as prophecy, namely, intelligible edification. The verb διερμηνεύῃ (diermēneuē, present active subjunctive, “should interpret”) is singular and has no expressed subject. Its most immediate antecedent is “the one speaking in tongues,” so the wording readily includes self-interpretation. Yet the clause is framed chiefly in terms of the result: “that the church may receive edification” (ἵνα ἡ ἐκκλησία οἰκοδομὴν λάβῃ). Interpretation renders the otherwise unintelligible utterance comprehensible to the gathered assembly, thereby removing the reason for prophecy’s relative superiority. The larger argument confirms that another person may supply the interpretation. In 14:13 Paul directs the tongue-speaker to pray “that he may interpret,” but in 14:27 he permits tongues in the assembly only when “one” interprets, language broad enough to include a distinct interpreter. The singular in v. 5 therefore functions generically: if interpretation occurs, whether through the speaker or through one gifted to interpret, the church receives the edification that otherwise belongs uniquely to prophecy. Paul is not assigning greater personal dignity to the prophet than to the tongue-speaker; μείζων (meizōn, “greater”) is functional and ecclesial. Prophecy is greater in the assembled church because it communicates intelligible revelation directly, whereas tongues attain comparable public usefulness only through interpretation.

Paul uses βάρβαρος (barbaros) not as an ethnic insult but as a designation for a person whose speech is unintelligible to another. In Greek usage the term could distinguish Greek speakers from those whose language sounded foreign, and it could sometimes acquire a pejorative force. Here, however, its force is specifically linguistic and reciprocal: when the hearer does not know the “meaning” of the sound, the speaker is foreign to him, and he is foreign to the speaker. Neither party can participate in meaningful communication. The expression “the meaning of the voice” translates τὴν δύναμιν τῆς φωνῆς. Although δύναμις (dynamis) commonly means “power” or “ability,” in this context it denotes the force, import, or intelligible content of a sound. The preceding comparison with the many kinds of sounds in the world (v. 10) establishes this sense: every sound has a recognizable significance, but a sound whose significance is unknown cannot convey understanding. The perfect subjunctive εἰδῶ (eidō, “I may know”) after ἐὰν marks the conditional situation, while the future ἔσομαι (“I shall be”) states its consequence. The reciprocal wording is important for Paul’s argument about tongues in the assembly. The defect does not lie in language itself, nor does Paul deny that a tongue may be a genuine gift of the Spirit. The problem is that untranslated speech leaves the congregation outside its meaning. A tongue thus functions, for those who do not understand it, as foreign speech rather than as edifying revelation. Verse 11 consequently prepares for the conclusion in vv. 12–19 that gifts exercised publicly must serve intelligible upbuilding, a purpose supplied in the case of tongues by interpretation.

Paul does not present mourning as an inward sentiment that automatically effects the offender’s removal. Their failure to mourn was culpable because godly grief over so conspicuous a sin should have issued in the corporate action expressed by ἵνα ἀρθῇ (hina arthē), “in order that he might be removed.” The aorist ἐπενθήσατε (epenthēsate) recalls the response that ought to have occurred when the matter became known: instead of being πεφυσιωμένοι (pephysiōmenoi), “puffed up,” they should have mourned with a view to the man’s exclusion from their fellowship. The verb ἀρθῇ is an aorist passive subjunctive of αἴρω (airō), “take away” or “remove.” Its passive form does not leave the agent wholly unspecified, as though Paul expected God alone to remove the man by judgment. The following verses make clear that the assembled church must act in the Lord’s name (vv. 3–5), and v. 13 gives the corresponding imperative, “Remove the evil person from among yourselves.” Yet the passive appropriately emphasizes the offender’s being put out of the community rather than the congregation’s autonomous power over him. Their disciplinary act is exercised under Christ’s authority and serves the holiness of the church, not personal retaliation. Thus mourning and removal are inseparable in Paul’s logic: mourning is the fitting ecclesial recognition of sin’s gravity, and removal is the necessary public judgment to which that recognition leads.

“The others” (hoi alloi) most naturally denotes the other prophets present, rather than the congregation indiscriminately. Paul has just directed that “two or three prophets” speak (prophētai ... laleitōsan), and the plural article with alloi distinguishes those speaking from those not presently speaking within the same prophetic group. The immediate continuation confirms this: if revelation comes to “another sitting by” (allō kathēmenō, v. 30), the first speaker must yield. Prophetic speech in Corinth was therefore neither uncontrollable nor exempt from assessment; “the spirits of prophets are subject to prophets” (v. 32). The primary responsibility for evaluation thus belongs to those recognized as capable of weighing purported revelation. The verb diakrinō, here in the present active imperative plural (diakrinetōsan), means to distinguish, assess, or render judgment after careful discrimination. It does not denote merely deciding whether a speaker was sincere, nor an ecstatic confirmation of the message, but testing the prophetic utterance for its character and truth. This accords with Paul’s earlier reference to the "distinguishing of spirits" (diakriseis pneumatōn, 12:10) and his wider injunction to test prophetic claims while retaining what is good (1 Thess. 5:20–21). Although the whole church is not thereby relieved of all responsibility to receive apostolic teaching and reject error, 1 Corinthians 14:29 specifically establishes ordered prophetic discernment among prophets. Even a genuine prophetic claimant was subject to public, intelligible examination by the church’s authorized spiritual judgment, rather than functioning as an autonomous bearer of revelation.

Paul’s οὐαί (“woe”) expresses the certainty of divine judgment upon an apostle who should repudiate the commission entrusted to him; it is not a statement that the preservation of a justified sinner rests upon meritorious ministerial performance. The immediate issue is Paul’s καύχημα (“ground of boasting”), not the ground of his acceptance before God. If he merely preaches because ἀνάγκη (“necessity, constraint”) has been laid upon him, his preaching as such supplies no basis for the particular boast developed in vv. 15–18: he has proclaimed the gospel without making use of his rightful material support. His boast concerns the voluntary relinquishment of an apostolic right, not an achievement by which he establishes righteousness before God. The expression ἀνάγκη μοι ἐπίκειται, literally, “necessity lies upon me,” depicts an obligation imposed upon Paul rather than one self-generated. The present middle indicative ἐπίκειται (epikeimai) conveys a continuing burden resting on him. Verse 17 identifies this burden as an οἰκονομία, a stewardship entrusted to him. Paul therefore speaks as one commissioned by the risen Christ and answerable to him; refusal to carry out that commission would incur the dreadful “woe” appropriate to faithless service. The prophetic resonance of οὐαί strengthens the sense of divine denunciation rather than mere personal regret or vocational frustration. This warning must be read alongside Paul’s repeated confession that his apostleship and labor arise from God’s grace (cf. 1 Cor. 15:10) and that Christian servants are stewards required to be faithful (4:1–2). It does not introduce a doctrine in which redemption is retained by successful gospel ministry. Rather, Paul’s hypothetical language underscores the gravity of an apostolic trust. The God who freely called and commissioned Paul also holds his commissioned servant accountable; consequently, preaching the gospel is for Paul neither an optional pursuit nor a claim to self-exalting merit.

Paul’s καὶ τοῦτο ἀδελφούς is an emphatic, climactic qualification of the preceding charges: the Corinthians themselves are committing injustice and defrauding others, and the persons so treated are fellow believers. The neuter demonstrative τοῦτο (houtos), formally accusative singular and commonly used adverbially in the expression καὶ τοῦτο, means “and this besides,” “and that at that.” It does not supply a second object alongside ἀδελφούς; rather, it heightens the shocking circumstance attending the actions denoted by ἀδικεῖτε and ἀποστερεῖτε: “you wrong and defraud—and this, brothers.” The accusative ἀδελφούς is the object understood with both present active indicatives, ἀδικεῖτε (adikeō, “you are doing wrong”) and ἀποστερεῖτε (apostereō, “you are depriving, defrauding”). The present tense portrays conduct characteristic of at least some within the congregation, not merely an isolated failure. Ἀποστερέω particularly suggests withholding or taking what is due, fitting the economic and property disputes envisioned in vv. 1–7, while ἀδικέω is broader and includes unjust treatment generally. “Brothers” is not a sentimental appendage but an ecclesiological indictment. Throughout the immediate context Paul contrasts a brother’s litigation against a brother (v. 6) with the alternative of suffering wrong or loss (v. 7). Verse 8 exposes the deeper reversal: those who should accept loss rather than publicly injure Christ’s people are themselves the agents of injury and deprivation. The expression therefore grounds Paul’s rebuke not simply in an ethic of fairness, but in the contradiction between exploitative conduct and the believers’ shared identity as members of the covenant community in Christ.

Paul’s οὐ δύνασθε (“you are not able”) expresses not mere physical incapacity but the covenantal and cultic incompatibility of two opposing communions. Δύνασθε is a present middle indicative of δύναμαι (dynamai), and its repeated use gives the assertion a categorical character: participation in the Lord’s cup and table cannot be combined with participation in rites that constitute fellowship with demons. The Corinthians could, of course, outwardly attend both kinds of meals; Paul’s concern is that such behavior would claim mutually exclusive religious allegiances. The statement therefore carries the force of a prohibition precisely because the two acts have incompatible meanings. The immediate context defines this incompatibility. In 10:16, the cup and bread are a κοινωνία (koinōnia), a sharing in Christ’s blood and body; in 10:18, those who eat Israel’s sacrifices share in the altar; and in 10:20 pagan sacrifices, though offered to idols in the human intention, are in reality offered to demons. “The table of the Lord” is thus the Lord’s Supper viewed in its sacrificial and covenantal associations, while “the table of demons” denotes the cultic meal connected with pagan sacrifice. Paul does not suggest that demons rival the Lord as equal divine powers, nor does he concede that idols are gods (10:19). Rather, demonic powers stand behind idolatrous worship, so that participation in its sacrificial feast contradicts the exclusive fellowship established by Christ. The language recalls Israel’s obligation to worship the Lord alone and prepares for the rhetorical question of v. 22: such divided participation is an attempt to provoke the Lord to jealousy.

Paul excludes both the replacement of Christ and the addition of any coequal basis for the church’s existence. The adjective ἄλλον (allon, “another,” accusative masculine singular) modifies θεμέλιον (themelion, “foundation”), while παρὰ τὸν κείμενον (para ton keimenon) identifies the foundation already in place. Although παρά with the accusative can denote spatial proximity (“beside”), in this negative construction it carries the force of “besides” or “in addition to.” A different foundation cannot be laid alongside Christ as though the church rested ultimately on two principles, persons, or saving mediators. The participle κείμενον, from κεῖμαι (keimai, “lie, be set in place”), is present and describes the continuing state of the foundation: it stands laid and remains in position. Paul had said in v. 10 that he laid a foundation as a wise master builder; v. 11 immediately prevents that statement from being construed as an assertion of apostolic primacy. The foundation Paul laid was not Paul himself, nor his independent teaching, but “Jesus Christ.” The nominative relative clause, ὅς ἐστιν Ἰησοῦς Χριστός, makes the identification explicit: the one foundation is the crucified and risen Messiah proclaimed in the apostolic gospel (cf. 1 Cor. 1:23; 2:2). This assertion does not deny that subsequent ministers build upon the foundation, since vv. 10 and 12 expressly describe such building. Nor does it deny that the church has derivative foundations in the apostolic witness in the sense found elsewhere in Scripture. Rather, it denies that any minister, theological system, religious achievement, or alternative message can function as the church’s constitutive foundation alongside or in place of Christ. The following warning concerns the quality of what is built upon him, not the legitimacy of establishing some other ground beneath the church.

Paul does not here class the Corinthians with the unconverted “natural person” of 2:14; he addresses them as genuine, though gravely immature, believers. The decisive qualification is “infants in Christ” (νηπίοις ἐν Χριστῷ). The prepositional phrase ἐν Χριστῷ locates these infants within the sphere of union with Christ, while νήπιος denotes a young child and, figuratively, an early and undeveloped stage of Christian understanding. Their inability to receive fuller instruction was therefore not the settled incapacity of those without the Spirit, but the culpable immaturity of those who had not grown in accordance with their profession. The adjective σαρκίνοις (from σάρκινος, “made of flesh,” hence “fleshly”) describes persons whose conduct and capacities were still dominated by the weakness and impulses associated with the flesh. Some have attempted to distinguish it sharply from σαρκικοί, “fleshly” or “controlled by the flesh,” used in 3:3. Such a distinction may be suggested by the forms, but Paul’s immediate argument does not rest upon a technical contrast: 3:3 explains the charge through jealousy and strife, concluding that they are behaving “according to man.” The contrast with πνευματικοῖς (“spiritual people”) thus concerns maturity and Spirit-shaped discernment, not two permanently separate classes of Christians. Paul’s severe language nevertheless excludes complacent readings of their condition; their party spirit displayed conduct inconsistent with their identity in Christ and prevented him, at the time indicated by the aorist ἠδυνήθην (“I was not able”), from giving them more advanced instruction.

The substitution of ἑτέρῳ (heterō, dative singular masculine) for ἄλλῳ (allō, likewise dative singular masculine) does not mark tongues as a gift of a different spiritual order, nor does it distinguish their recipients from the recipients of the preceding gifts. Both datives continue the distributional construction introduced in vv. 7–8: the manifestation of the Spirit is given “to one” and “to another” according to the Spirit’s sovereign allotment (v. 11). In this context, ἕτερος functions substantially as a synonym for ἄλλος, meaning another person within the community. Although classical Greek could distinguish ἄλλος as “another of the same kind” from ἕτερος as “another of a different kind,” that distinction is not consistently maintained in Koine Greek. Paul can employ the terms with sharper contrast where his argument requires it, as in Galatians 1:6–7, but no such contrast is established here. Indeed, the alternation has already appeared in v. 9, where faith is given “to another” (ἑτέρῳ) and gifts of healings “to another” (ἄλλῳ), without implying that faith or healing belongs to a distinct source. The repeated variation serves the list’s rhetorical movement rather than creating technical categories of charisms. The plural phrase γένη γλωσσῶν (genē glōssōn), “kinds of tongues,” denotes varieties of tongue-speech, while ἑρμηνεία γλωσσῶν, “interpretation of tongues,” is separately allotted to another. The syntax therefore underscores differentiation of gifts among members, not a qualitative separation of tongues from prophecy, discernment, or miraculous workings. All remain manifestations of the one Spirit, whose diverse bestowals are ordered for the common good (vv. 7, 11).

The imperative ἀνδρίζεσθε (andrizesthe) is addressed to the whole Corinthian assembly, not to males alone. Like the surrounding verbs—Γρηγορεῖτε, στήκετε, and κραταιοῦσθε—it is a second-person plural command. Its middle-form verb, ἀνδρίζομαι (andrizomai), derives from ἀνήρ, “man,” but in established Greek usage it means “be courageous” or “show oneself valiant.” “Act like men” is therefore formally close to the idiom’s imagery, while “be courageous” communicates its intended exhortatory force in English. Paul is not here distinguishing masculine from feminine Christian duties, nor assigning courage exclusively to men; he summons the entire church to steadfast, courageous fidelity amid doctrinal and moral pressures. The wording likely reflects the Greek Old Testament’s recurrent language of holy courage, especially the combination found in Psalm 31:24 (LXX 30:25): “Be courageous, and let your heart be strengthened,” addressed to all who hope in the Lord. Paul’s final command, κραταιοῦσθε (krataiousthe), a present passive imperative meaning “be strengthened” or “be made strong,” similarly indicates that the required firmness is not autonomous bravado. The sequence moves from vigilance and steadfastness “in the faith” to courage and divinely supplied strength. Thus the gendered metaphor in ἀνδρίζεσθε serves the conventional biblical idiom of valor, while the plural address and the immediately following command that all things be done in love (v. 14) establish its application to the whole covenant community.

Paul emphatically denies that the foot’s self-assessment alters its actual relation to the body: because it is not a hand, it does not thereby cease to belong to the body. The opening οὐ introduces a rhetorical question whose expected answer confirms the positive point, while the δεύτερον negative in οὐκ ἔστιν makes the underlying claim explicit: the foot is not, on that account, "not of the body." The clause is therefore not saying that the foot belongs because it voices dissatisfaction; it rejects the inference drawn from its difference. The phrase παρὰ τοῦτο is idiomatic and causal in force, meaning "because of this," "on this basis," or "thereby," rather than spatially, "beside this." Thus the Anselm rendering, "is it not of the body for this reason?" is intelligible but can suggest that the foot’s statement supplies a positive reason for membership. Paul’s point is the opposite: the statement supplies no valid ground for denying membership. The expression ἐκ τοῦ σώματος, literally "from the body," denotes belonging to and deriving one’s place within the organic whole. In the immediate argument, developed in vv. 12–27, differing functions among believers do not negate their incorporation into the one σώμα; that incorporation has been established by God’s ordering of the body and, according to v. 13, by the one Spirit.

Paul’s qualification is a deliberate and truthful limitation of his personal recollection, not an error subsequently admitted into the text. Having named Crispus and Gaius (vv. 14–15), Paul recalls the household of Stephanas as an additional exception, then states that he cannot affirm whether he personally baptized anyone further. The perfect-form verb οἶδα (oida, “I know”) has present force: “I do not know at present whether I baptized anyone else.” The construction εἴ τινα ἄλλον ἐβάπτισα (“whether I baptized anyone else”) leaves the matter open without asserting that no additional baptisms occurred. λοιπὸν (loipon) means “for the rest” or “otherwise,” marking the conclusion of the qualification. This limited recollection serves the argument of 1:10–17. Paul is not compiling a complete baptismal register; he is refuting Corinthian party claims grounded in attachment to prominent ministers. His thankful reference to the small number personally baptized by him underscores that he did not conduct his ministry so as to create a Pauline baptismal faction or to baptize converts into his own name. The spontaneous insertion concerning Stephanas’s household has the character of an authentic correction in dictated correspondence, while the final reservation prevents an overstatement. The statement does not compromise inspiration. Scripture’s truthfulness does not entail that its human authors possessed exhaustive knowledge of every past circumstance; rather, Paul accurately reports the extent of his remembered knowledge and does not claim more. Indeed, the admission reinforces the passage’s candor: the apostle distinguishes what he knows from what he cannot presently verify. The authority of the text lies in its truthful apostolic witness and its Spirit-given teaching, not in a pretense that Paul retained an infallible administrative memory of every baptism he may have performed.

Paul describes an objective divine attestation of his message, not merely an inward impression produced in individual hearers; yet the phrase cannot be confined to spectacular miracles. The noun ἀπόδειξις (apodeixis, “demonstration” or “proof”), governed by ἐν (“in/by”), deliberately stands over against the persuasive procedures associated with merely human σοφία (“wisdom”). Paul’s preaching was authenticated by the Holy Spirit’s active presence and by divine power rather than by the rhetorical techniques that might make a speaker’s case appear compelling. The genitives πνεύματος καὶ δυνάμεως (“of Spirit and power”) are closely joined but should not be collapsed into a bare hendiadys, as though Paul had written only “spiritual power.” In this context πνεῦμα denotes the Holy Spirit, whose role in revealing and imparting God’s wisdom is developed in 2:10–14. Δύναμις (dynamis) denotes the effective power of God, the same power in which faith must rest according to v. 5 and which Paul has already associated with the word of the cross (1:18, 24). The Spirit is thus the divine agent, and power is the effective divine operation accompanying and vindicating the apostolic proclamation. Such power included extraordinary manifestations where God granted them; Paul elsewhere speaks of his ministry being fulfilled “by the power of signs and wonders, by the power of the Spirit of God” (Rom. 15:19), and he reminds the Corinthians that manifestations of the Spirit occurred among them (1 Cor. 12:4–11). Nevertheless, the immediate argument centers on the establishment of faith through the crucified Christ rather than on signs as an independent proof. The demonstration therefore includes the Spirit’s powerful conversion, illumination, and confirmation of the gospel, with miraculous gifts functioning as subordinate attestations where present. Paul contrasts not an irrational gospel with rational discourse, but a ministry grounded in God’s self-authenticating action with one resting upon the persuasive resources of human wisdom.

Paul characterizes the existence of intra-church litigation not merely as an unfortunate practical loss but as a decisive defeat for the congregation’s Christian witness and identity. The nominative neuter ἥττημα (hēttēma), "defeat, loss," stands emphatically with ὅλως (holōs), here meaning "altogether" or "in every respect": "it is already altogether a defeat for you." Before any particular suit is adjudicated, the community has suffered a defeat by bringing its disputes into the public judicial sphere and setting brother against brother (vv. 1, 6). The adverb ἤδη (ēdē, "already") is significant: the loss is present prior to the court’s verdict, since the disputes themselves expose a failure of the church’s calling to render righteous judgments within its own fellowship (vv. 2–5). The two rhetorical questions explain the nature of the alternative Paul commends: "Why are you not rather being wronged? Why are you not rather being defrauded?" Ἀδικεῖσθε and ἀποστερεῖσθε are present passive indicatives of ἀδικέω (adikeō, "wrong, treat unjustly") and ἀποστερέω (apostereō, "deprive, defraud"). The passive forms place the believers in the position of those who endure injury or material deprivation. The second verb is especially appropriate to the financial and property disputes envisaged by κρίματα (krimata, "cases, legal proceedings"), while the first is broader and includes unjust treatment generally. Paul’s point is not that wrongdoing ceases to be wrongdoing, nor that the defrauder is excused; indeed, v. 8 immediately charges the Corinthians themselves with wronging and defrauding fellow believers. Rather, the injured party’s insistence on securing his rights through litigation against a brother is, in this setting, a worse corporate loss than bearing the injury. This language accords with the pattern of Christ’s non-retaliatory suffering and with Paul’s wider teaching that believers may relinquish legitimate claims for the sake of the gospel and the good of others (cf. 1 Cor. 9:12, 15). It does not establish that every appeal to civil authority is intrinsically unlawful, for Paul elsewhere recognizes the magistrate’s God-given judicial function and himself appeals to Roman legal process. Its immediate force concerns lawsuits "among yourselves," especially the spectacle of one Christian prosecuting another before unbelieving judges. Such litigation contradicts the eschatological competence and reconciled fellowship Paul has just ascribed to the saints.

“It is revealed in fire” refers grammatically to “the Day,” not directly to each person’s work. The subject of ἀποκαλύπτεται (apokalyptetai, present passive indicative, “is being/is revealed”) is ἡ ἡμέρα (hē hēmera, “the Day”), the immediately preceding feminine singular noun. Paul’s sequence is therefore precise: each work will become manifest; the Day will disclose it; for that Day is revealed in fire; and the fire itself will test what sort of work each one has built. The fire is not first introduced as an inward process in the worker but as the element accompanying the eschatological revelation of the Day and exposing the actual character of the work. “The Day” is the day of the Lord’s final disclosure and judgment, here viewed in relation to those who build upon Christ, the sole foundation (3:11). Paul’s present ἀποκαλύπτεται amid future verbs (γενήσεται, δηλώσει, δοκιμάσει) does not make the testing merely a present historical experience; it vividly states the manner in which the coming Day arrives—as a revelation in fire. Fire is a familiar biblical image for God’s holy, judicial presence, which consumes what cannot endure and proves what is genuine. Accordingly, δοκιμάσει (dokimasei, future active indicative of dokimazō) denotes testing so as to disclose quality, not indiscriminate destruction. The object tested is “each one’s work” and specifically “what sort” (ὁποῖον, hopoion) it is; the following verses distinguish enduring labor from labor that is burned, while maintaining the salvation of the one whose work is lost (3:14–15).

“Israel according to the flesh” identifies Israel in its historical, ethnic, and cultic existence, not a supposedly unrelated or illegitimate people set over against the church. The expression κατὰ σάρκα (kata sarka, “according to flesh”) marks Israel as the nation constituted by natural descent and living under the Mosaic sacrificial order. Paul directs the Corinthians to consider that visible, historical Israel as an analogy for the issue under discussion: those who ate sacrificial meals were κοινωνοὶ τοῦ θυσιαστηρίου (koinōnoi tou thysiastēriou), “participants in” or “sharers of” the altar. Their eating was not religiously neutral, since it expressed participation in the sacrificial cult centered upon the altar. The phrase does carry a qualification. Paul can distinguish physical Israel from the saving reality to which God’s covenant purposes point, and the wilderness narrative immediately preceding (10:1–13) demonstrates that membership among the covenant people and participation in sacred privileges did not guarantee final salvation. Yet the qualification does not mean that Israel’s worship was merely carnal in the sense of false or pagan worship. The altar was appointed by God, and participation in its sacrifices involved real covenantal fellowship within the old-order administration. Paul’s argument depends precisely upon that fact: as Israelite sacrificial meals joined participants to the altar, and the Lord’s Supper manifests participation in Christ (10:16–17), so meals connected with idol sacrifices cannot be treated as indifferent. Thus “Israel according to the flesh” denotes Israel in its earthly Mosaic form, whose sacrificial practice supplies a valid canonical analogy while also belonging to an order fulfilled in Christ.

Paul defines Christian liberty as freedom that must not become a new bondage. The future passive ἐξουσιασθήσομαι (from ἐξουσιάζω, “to exercise authority over, control”) is forceful: “I shall not be brought under the authority of anything.” The emphatic ἐγώ (“I”) contrasts the believer’s proper relation to created things with the relation of one enslaved by them. The indefinite neuter τινος, governed by ὑπό, is comprehensive: no thing—not food, bodily appetite, social privilege, or any other otherwise lawful good—may acquire mastery over the Christian. The repeated πάντa μοι ἔξεστιν (“all things are lawful/permitted to me”) is widely understood as a Corinthian maxim, perhaps one drawn from Paul’s teaching on freedom and then pressed beyond its proper bounds. Even if Paul can appropriate the words in a qualified sense, the immediate context excludes their use as a license for sexual immorality (vv. 13–20), and 10:23 repeats the maxim while adding the tests of edification and the neighbor’s good. Thus ἔξεστιν does not mean that every conceivable action is morally authorized. It concerns claimed Christian freedom, which is judged by whether an action συμφέρει (“is beneficial, advantageous”) and whether it compromises the believer’s freedom by establishing a rival dominion. The apostle’s paradox is deliberate: liberty invoked to justify submission to appetite is not liberty at all, since it places the claimant under the power of the very thing claimed as permissible.

Paul presents the cup as the sacramental sign of the new covenant promised in Jeremiah 31:31–34 and inaugurated through Christ's sacrificial death. The predicate expression, "this cup is the new covenant" (τοῦτο τὸ ποτήριον ἡ καινὴ διαθήκη ἐστίν), is sacramental and metonymic: the cup is not materially identical with the covenant, but, as the appointed cup containing wine, signifies and seals the covenantal blessings secured by Christ's blood. The following phrase, ἐν τῷ ἐμῷ αἵματι, "in my blood," identifies the means or sacrificial basis by which this covenant stands. Christ's blood, rather than the contents of the cup considered in isolation, establishes the covenant relation. The language deliberately evokes Exodus 24:8, where Moses announces, "Behold the blood of the covenant," after the covenant at Sinai had been ratified with sacrificial blood. Yet the adjective καινή (kainē, "new") directs the allusion especially toward Jeremiah's promise of a covenant distinct from the one made when Israel came out of Egypt. Jeremiah's new covenant would include the divine writing of the law upon the heart, the definitive knowledge of the Lord, and the forgiveness of sins (Jer 31:31–34). Jesus' death accomplishes the atoning foundation required for that promised forgiveness; thus his blood inaugurates the covenant anticipated by the prophets. The phrase should not be reduced to an assertion that the old covenant was simply discarded as though God's prior promises had failed. Rather, the new covenant is the climactic fulfillment of God's redemptive purpose, established by the once-for-all blood of the Messiah rather than repeated animal sacrifices. In the immediate context, Paul invokes these words to show that the Supper is governed by the Lord's covenantal self-giving and therefore cannot be treated as an ordinary communal meal or as an occasion for social division.