But when I saw that they walked not uprightly according to the truth of the gospel, I said unto Peter before them all, If thou, being a Jew, livest after the manner of Gentiles, and not as do the Jews, why compellest thou the Gentiles to live as do the Jews?
14. But when I saw that they walked not uprightly. Some apply these words to the Gentiles, who, perplexed by Peter’s example, were beginning to give way; but it is more natural to understand them as referring to Peter and Barnabas, and their followers.
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 I saw that they walked not uprightly,.... Or "did not foot it aright"; or "walked not with a right foot": they halted, as the Jews of old did, between two opinions, being partly for God, and partly for Baal; so these seemed, according to their conduct, to be partly for grace, and partly for the works of the law; they seemed to be...