Galatians 2:11-16

But when Peter came to Antioch, I opposed him in public, because he was clearly wrong. Before some men who had been sent by James arrived there, Peter had been eating with the Gentile believers. But after these men arrived, he drew back and would not eat with the Gentiles, because he was afraid of those who were in favor of circumcising them. The other Jewish believers also started acting like cowards along with Peter; and even Barnabas was swept along by their cowardly action. When I saw that they were not walking a straight path in line with the truth of the gospel, I said to Peter in front of them all, “You are a Jew, yet you have been living like a Gentile, not like a Jew. How, then, can you try to force Gentiles to live like Jews?” Indeed, we are Jews by birth and not “Gentile sinners,” as they are called. Yet we know that a person is put right with God only through faith in Jesus Christ, never by doing what the Law requires. We, too, have believed in Christ Jesus in order to be put right with God through our faith in Christ, and not by doing what the Law requires. For no one is put right with God by doing what the Law requires.