2:15-19 Paul, having thus shown he was not inferior to any apostle, not to Peter himself, speaks of the great foundation doctrine of the gospel. For what did we believe in Christ? Was it not that we might be justified by the faith of Christ? If so, is it not foolish to go back to the law, and to expect to be justified by the merit of moral works, or sacrifices, or ceremonies? The occasion of this declaration doubtless arose from the ceremonial law; but the argument is quite as strong against all dependence upon the works of the moral law, as respects justification. To give the greater weight to this, it is added, But if, while we seek to be justified by Christ, we ourselves also are found sinners, is Christ the minister of sin? This would be very dishonourable to Christ, and also very hurtful to them. By considering the law itself, he saw that justification was not to be expected by the works of it, and that there was now no further need of the sacrifices and cleansings of it, since they were done away in Christ, by his offering up himself a sacrifice for us. He did not hope or fear any thing from it; any more than a dead man from enemies. But the effect was not a careless, lawless life. It was necessary, that he might live to God, and be devoted to him through the motives and grace of the gospel. It is no new prejudice, though a most unjust one, that the doctrine of justification by faith alone, tends to encourage people in sin. Not so, for to take occasion from free grace, or the doctrine of it, to live in sin, is to try to make Christ the minister of sin, at any thought of which all Christian hearts would shudder.

17. Greek, "But if, seeking to be justified IN (that is, in believing union with) Christ (who has in the Gospel theory fulfilled the law for us), we (you and I) ourselves also were found (in your and my former communion with Gentiles) sinners (such as from the Jewish standpoint that now we resume, we should be regarded, since we have cast aside the law, thus having put ourselves in the same category as the Gentiles, who, being without the law, are, in the Jewish view, "sinners," Ga 2:15), is therefore Christ, the minister of sin?" (Are we to admit the conclusion, in this case inevitable, that Christ having failed to justify us by faith, so has become to us the minister of sin, by putting us in the position of "sinners," as the Judaic theory, if correct, would make us, along with all others who are "without the law," Ro 2:14; 1Co 9:21; and with whom, by eating with them, we have identified ourselves?) The Christian mind revolts from so shocking a conclusion, and so, from the theory which would result in it. The whole sin lies, not with Christ, but with him who would necessitate such a blasphemous inference. But his false theory, though "seeking" from Christ, we have not "found" salvation (in contradiction to Christ's own words, Mt 7:7), but "have been ourselves also (like the Gentiles) found" to be "sinners," by having entered into communion with Gentiles (Ga 2:12).