I don't think that's super accurate, Paul has a whole thing (depicted in Romans) where he preaches to the Gentiles that god doesn't play favorites, and good people follow his law regardless. He chooses to illustrate it by saying it's not the circumcision on your body that counts, but the one in your heart, which is objectively funny.
That's right after he said the Greeks depraved because of all the gay sex, so maybe a little less judgement on that part, Paul.
He won't have to