Galatians 2:15-21
The believer is justified by faith, crucified with Christ, and now lives by faith in the Son of God who loved and gave Himself.
15 “We, being Jews by nature, and not Gentile sinners,
16 yet knowing that a man is not justified by the works of the law but through faith in Jesus Christ, even we believed in Christ Jesus, that we might be justified by faith in Christ, and not by the works of the law, because no flesh will be justified by the works of the law.
17 But if while we sought to be justified in Christ, we ourselves also were found sinners, is Christ a servant of sin? Certainly not!
18 For if I build up again those things which I destroyed, I prove myself a law-breaker.
19 For I, through the law, died to the law, that I might live to God.
20 I have been crucified with Christ, and it is no longer I who live, but Christ lives in me. That life which I now live in the flesh, I live by faith in the Son of God, who loved me, and gave himself up for me.
21 I don’t reject the grace of God. For if righteousness is through the law, then Christ died for nothing!”
The believer is justified by faith, crucified with Christ, and now lives by faith in the Son of God who loved and gave himself.
Paul explains why even Jews who know the law must seek justification through faith in Jesus Christ rather than through works of the law.
Galatians 2:15-21 moves from the public rebuke of Peter into the doctrinal principle that made Peter's conduct so dangerous. The issue is not merely table fellowship but whether Gentile believers must adopt Jewish boundary markers to enjoy full standing among God's people. Paul now brings the gospel logic into open form: Jewish believers themselves know that justification is not secured by works of the law but through faith in Christ. This passage anticipates the extended argument of Galatians 3-4, where Abraham, promise, law, sonship, and inheritance will be developed more fully. It also prepares for Galatians 5-6, because gospel freedom is not independence from holiness but life animated by Christ and later described as walking by the Spirit. The literary pressure rests on a stark either-or: either righteousness comes through law, or it comes through Christ's self-giving death received by faith.
This unit concludes Paul's public correction of Peter at Antioch by articulating the doctrinal truth that Peter's withdrawal had functionally compromised. Jewish and Gentile believers stand on the same ground before God: not ethnic privilege, table separation, or works of the law, but faith in Jesus Christ.
Justified by Faith: Gospel Unity, Apostolic Confrontation, and Life in Christ
The truth of the gospel demands that sinners are justified by faith in Christ alone, united to Christ in his death and life, and never returned to slavery under law-based righteousness.