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
Jerome
AD 420
It is not that Peter and Cephas signify different things, but what we would call in Latin and Greek petra (“stone”) the Hebrews and Syrians both, because of the affinity of their languages, call cephas…. Nor is it surprising that Luke was silent on this matter, when there are many other things that Paul claims to have suffered which Luke omits with the freedom of a historian. .