To them that are without law, as without law, (being not without law to God, but under the law to Christ,) that I might gain them that are without law.

People's New Testament

9:21 To them that ate without law, as without law. To such, though in the sight of God keeping His law, he came not as an enforcer of the law of Moses. He spoke to Gentiles from a Gentile standpoint, as at Athens (Acts 17:22-31).

Wesley's Notes

9:21 To them that are without the law - The heathens. As without the law - Neglecting its ceremonies. Being not without the law to God - But as much as ever under its moral precepts. Under the law to Christ - And in this sense all Christians will be under the law for ever.

Scofield Reference Notes

[1] without

The expression is peculiar and might be literally rendered, " not lawless toward God, but inlawed to Christ." See "Law (of Christ)," Gal 6:2 2Jn 1:5. It is another way of saying, "not under the law, but under [the rule of] grace." Rom 6:14.

Jamieson-Fausset-Brown Bible Commentary

21. To them . without law-that is, without revealed law: the heathen (compare Ro 2:12 with 1Co 9:15).

as without law-not urging on them the ceremonies and "works of the law," but "the hearing of faith" (Ga 3:2). Also discoursing in their own manner, as at Athens, with arguments from their own poets (Ac 17:28).

being not without law to God-"While thus conforming to others in matters indifferent, taking care not to be without law in relation to God, but responsible to law (literally, "IN LAW") in relation to Christ." This is the Christian's true position in relation to the world, to himself, and to God. Everything develops itself according to its proper law. So the Christian, though no longer subject to the literal law as constraining him from without, is subject to an inward principle or law, the spirit of faith in Christ acting from within as the germ of a new life. He does not in the Greek (as in English Version) say "under the law (as he does in 1Co 9:20) to Christ"; but uses the milder term, "in . law," responsible to law. Christ was responsible to the law for us, so that we are no longer responsible to it (Ga 3:13, 24), but to Him, as the members to the Head (1Co 7:22; Ro 8:1-4; 1Pe 2:16). Christians serve Christ in newness of spirit, no longer in oldness of the letter (that is, the old external law as such), Ro 7:4-6. To Christ, as man's Head, the Father has properly delegated His authority (Joh 5:22, 27); whence here he substitutes "Christ" for "God" in the second clause, "not without law to God, but under the law to Christ." The law of Christ is the law of love (Ga 6:2; compare Ga 5:13).

Matthew Henry's Concise Commentary

9:15-23 It is the glory of a minister to deny himself, that he may serve Christ and save souls. But when a minister gives up his right for the sake of the gospel, he does more than his charge and office demands. By preaching the gospel, freely, the apostle showed that he acted from principles of zeal and love, and thus enjoyed much comfort and hope in his soul. And though he looked on the ceremonial law as a yoke taken off by Christ, yet he submitted to it, that he might work upon the Jews, do away their prejudices, prevail with them to hear the gospel, and win them over to Christ. Though he would transgress no laws of Christ, to please any man, yet he would accommodate himself to all men, where he might do it lawfully, to gain some. Doing good was the study and business of his life; and, that he might reach this end, he did not stand on privileges. We must carefully watch against extremes, and against relying on any thing but trust in Christ alone. We must not allow errors or faults, so as to hurt others, or disgrace the gospel.