Galatians 2:17

“But if while we seek to be justified by Christ, etc..] As they did, and not only sought for, but obtained what they sought for, because they sought for it at the hands of Christ, and not as it were by works, but by faith, even a justifying righteousness in him. We ourselves also are found sinners; that is, either we should be so, were we not to rest here, but seek to join our own works with Christ's righteousness for our justification, and so make Christ the minister of sin, of an imperfect righteousness, which cannot justify, which God forbid should ever be done by us; or we are reckoned sinners by you, judaizing Christians, for leaving the law, and going to Christ for righteousness; and if…”

“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," Gal 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…”

“But if, while we seek to be justified by Christ - The connection here is not very clear, and the sense of the verse is somewhat obscure. Rosenmuller supposes that this is an objection of a Jew, supposing that where the Law of Moses is not observed there is no rule of life, and that therefore there must be sin; and that since the doctrine of justification by faith taught that there was no necessity of obeying the ceremonial law of Moses, therefore Christ, who had introduced that system, must be regarded as the author and encourager of sin. To me it seems probable that Paul here has reference to an objection which has in all ages been brought against the doctrine of justification by faith, and…”

“But if while we seek to be justified by Christ, we ourselves are still found sinners - If we continue in sin, will it therefore follow, that Christ is the minister or countenancer of sin? Galatians 2:18”

“2:17-21 The false teachers probably claimed that Paul’s law-free Good News would lead to lawlessness, that people would flaunt their sinfulness, and that Christ would thus be seen as leading people into sin (2:17). Paul shows that this is false, because those who place their faith in Christ are empowered by the Holy Spirit to live holy, God-honoring lives (see 5:13-26).”

“while: Rom 9:30-33, Rom 11:7 are found: Gal 2:11; Rom 6:1, Rom 6:2; Jo1 3:8-10 is: Mat 1:21; Rom 15:8; Co2 3:7-9; Heb 7:24-28, Heb 8:2; Jo1 3:5 God: Rom 3:4, Rom 3:6 Galatians 2:18”