As we have said before, and now I say again, if any one is preaching to you a gospel contrary to what you received, let him be condemned to hell!

But when I saw that they were not behaving consistently with the truth of the gospel, I said to Cephas in front of them all, "If you, although you are a Jew, live like a Gentile and not like a Jew, how can you try to force the Gentiles to live like Jews?"