Cephas in the Bible

Then after three years I went up to Jerusalem to see Cephas, and was there with him fifteen days.

On the contrary, when they saw that I had been intrusted with the good news for the heathen, just as Peter had been intrusted with it for the Jews??8 for he who actuated Peter to be an apostle to the Jews also actuated me to be one to the heathen??9 and when they recognized the favor God had shown me, James, Cephas, and John, who were regarded as pillars of the church, pledged Barnabas and me their co-operation, with the understanding that we should work among the heathen and they among the Jews.

and when they recognized the grace which had been given to me, James and Cephas and John, then thought to be pillars, gave to Barnabas and to me the right hand of fellowship. They agreed that we should go to the Gentiles and they to the Jews.

But when Cephas came to Antioch I resisted him to his face, because he stood self-condemned.

But when I saw that they were not walking a straight path, in the presence of the truth of the gospel, I said to Cephas before them all. "If you, although you are a Jew, live like the Gentiles and not like the Jews, why do you try to compel the Gentiles to become Jews?