Galatians 2:14

But when I saw that they walked not uprightly according to the truth of the gospel, I said unto Cephas before them all [Antioch was the center and citadel of Gentile Christianity with all its privileges and liberties, and Antioch was being captured. It was time to act, and the whole fate of the church, humanly speaking, rested on one man, but that man was equal to the occasion. When leaders failed to walk according to the truth of the gospel, Paul was always heard from. He spoke here, and the church was saved. The open boldness of his unsparing rebuke, delivered before some great congregation, was a warning to these gospel-perverters of what he would do should he come to Galatia. Doubt exists as to where Paul's words to Peter end, but they seem to embrace the entire chapter], If thou, being a Jew, livest as do the Gentiles, and not as do the Jews, how compellest thou the Gentiles to live as do the Jews?