Galatians 2:11-16

But when Peter came to Antioch, I withstood him to the face, because he was to be condemned: for before that certain came from James, he ate with those of the nations; but when they came, he drew back and separated himself, fearing those of the circumcision; and the rest of the Jews also played the same dissembling part with him; so that even Barnabas was carried away too by their dissimulation. But when I saw that they do not walk straightforwardly, according to the truth of the glad tidings, I said to Peter before all, If thou , being a Jew, livest as the nations and not as the Jews, how dost thou compel the nations to Judaize? We, Jews by nature, and not sinners of the nations, but knowing that a man is not justified on the principle of works of law nor but by the faith of Jesus Christ, we also have believed on Christ Jesus, that we might be justified on the principle of the faith of Christ; and not of works of law; because on the principle of works of law no flesh shall be justified.