What does Galatians 2:17 mean?
In one of the great verses in the Bible, Paul has declared outright that nobody can be justified—"declared righteous" before God—by the works of the law of Moses (Galatians 2:16). The only way anyone can ever be justified and made acceptable to God is by faith in the Christ who died to pay the penalty for our sins. Adding any other requirement to this gospel is false (Galatians 2:4) and worthy of condemnation (Galatians 1:8–9).Now Paul begins to answer an objection from some of the critics of the gospel of Jesus: If God declares people righteous for free by faith in Christ, won't everyone just go on sinning? What motivation would anyone have to do what is right? Paul's accusers likely pointed to exactly what happened with Peter. When someone feels they are justified by faith in Christ, they eat unclean food with Gentiles! From the Judaizers' perspective, this was the definition of a sinful lifestyle.
Doesn't the idea of justification by faith in Christ turn Jesus into a servant of our sin? Paul answers harshly: Certainly not! May it never be! Absolutely not! He continues on to explain this position in the following verse.