As I have said it before, so now I say it again, if anybody is preaching to you a good news that is contrary to the one which you have already received, a curse upon him!

But when I saw that they were not living up to the truth of the good news, I said to Cephas, and that before them all, "If you are living like a heathen and not like a Jew, although you are a Jew yourself, why do you try to make the heathen live like Jews?"