Galatians 2:9-11

Revised Standard Version

⁹ and when they perceived the grace that was given to me, James and Cephas and John, who were reputed to be pillars, gave to me and Barnabas the right hand of fellowship, that we should go to the Gentiles and they to the circumcised; ¹⁰ only they would have us remember the poor, which very thing I was eager to do.

Paul Rebukes Peter at Antioch

¹¹ But when Cephas came to Antioch I opposed him to his face, because he stood condemned.