But when Peter came to Antioch, I withstood him to his face, because he was to be blamed.
All Commentaries on Galatians 2:11 Go To Galatians 2
John Chrysostom
AD 407
Many of those who read this passage of the letter superficially believe that Paul rebuked the hypocrisy of Peter. But it is not so—it is not so, far from it! For we shall find that there was here a deep though hidden understanding between Paul and Peter for the good of those who listen. … How could one who risked his life before such a multitude have ever played the hypocrite? … Paul does not now say this to condemn Peter, but in the same spirit as when he said those who are “reputed to be something,” he now says this too…. The apostles, as I said before, consented to circumcision in Jerusalem, because it was not possible to tear them away from the law all at once. But when they came to Antioch they did not henceforth observe anything of the kind but lived indifferently with believers of Gentile origin. Peter also did this. But when people came from Judea and saw him preaching there in this way, he gave up this practice, fearing to disturb them, and changed his ways. He had a twofold purpose, to avoid scandalizing the Jews and to give Paul a plausible reason to confront him. For if Peter himself, having included circumcision in his preaching in Jerusalem, had changed in Antioch, those of Jewish origin would have surmised that he did this from fear of Paul, and his disciples would have condemned his excessive complacence…. And so Paul rebukes and Peter voluntarily gives way. It is like the master who when upbraided keeps silent, so that his disciples might more easily change their ways.
