Galatians 2:12-16

ISV(i) 12 Until some men arrived from James, he was in the habit of eating with the gentiles, but after those men came, he withdrew from the gentiles and would not associate with them any longer, because he was afraid of the circumcision party. 13 The other Jews also joined him in this hypocritical behavior, to the extent that even Barnabas was caught up in their hypocrisy. 14 But when I saw that they were not acting consistently with the truth of the gospel, I told Cephas in front of everyone, “Though you are a Jew, you have been living like a gentile and not like a Jew. So how can you insist that the gentiles must live like Jews?”
15 Jews, Like Gentiles, are Saved by FaithWe ourselves are Jews by birth, and not gentile sinners, 16 yet we know that a person is not justified by doing what the Law requires, but rather by the faithfulness of Jesus the Messiah. We, too, have believed in the Messiah Jesus so that we might be justified by the faithfulness of the Messiah and not by doing what the Law requires, for no human being will be justified by doing what the Law requires.