When Cephas came to Antioch, however, I opposed him to his face, because he stood condemned.
11. When Peter was come. Whoever will carefully examine all the circumstances, will, I trust, agree with me in thinking, that this happened before the apostles had decided that the Gentiles should receive no annoyance about ceremonial observances. (Acts 15:28.) For Peter would have entertained no dread of offending James, or those sent by him, after that decision had been passed: but such was the...
Peter came to Antioch eating freely with Gentile believers, as the Spirit had taught him; but when Jewish Christians arrived, he withdrew, and this hypocrisy I had to oppose to his face. His fault proved plainly that he was not superior to me, and so the papacy's claim to his infallibility falls to pieces.
AI summary
Commenting on Galatians 2:11-21
But when Peter was come to Antioch,.... The Alexandrian copy, and others, and the Vulgate Latin, Syriac, and Ethiopic versions, instead of "Peter", read "Cephas", who, by some ancient writers, is said to be not Peter the Apostle, named Cephas by Christ, but one of the seventy disciples.