Galatians 2:11-15

But when Peter came to Antioch, I had to oppose him to his face, for what he did was very wrong. When he first arrived, he ate with the Gentile believers, who were not circumcised. But afterward, when some friends of James came, Peter wouldn’t eat with the Gentiles anymore. He was afraid of criticism from these people who insisted on the necessity of circumcision. As a result, other Jewish believers followed Peter’s hypocrisy, and even Barnabas was led astray by their hypocrisy. When I saw that they were not following the truth of the gospel message, I said to Peter in front of all the others, “Since you, a Jew by birth, have discarded the Jewish laws and are living like a Gentile, why are you now trying to make these Gentiles follow the Jewish traditions? “You and I are Jews by birth, not ‘sinners’ like the Gentiles.