There’s a little section in Paul’s letter to the Galatians Chapter 2 where he tells us about the time when Peter came to visit him at Antioch.
11But when Cephas came to Antioch, I opposed
him to his face, because he stood condemned. 12For
before certain men came from James, he was eating with the Gentiles; but
when they came he drew back and separated himself, fearing the
circumcision party. 13And the rest of the Jews acted
hypocritically along with him, so that even Barnabas was led astray by their
hypocrisy. 14But when I saw that
their conduct was not in step with the truth of the gospel, I said to
Cephas before them all, “If you, though a Jew, live like a Gentile
and not like a Jew, how can you force the Gentiles to live like Jews?”