Even that question wouldn't have come up except for some so-called Christians there -- false ones, really -- who came to spy on us and see our freedom in Christ Jesus. They wanted to force us, like slaves, to follow their Jewish regulations.
References for Galatians 2:4
But we refused to listen to them for a single moment. We wanted to preserve the truth of the Good News for you.
And the leaders of the church who were there had nothing to add to what I was preaching. (By the way, their reputation as great leaders made no difference to me, for God has no favorites.)
They saw that God had given me the responsibility of preaching the Good News to the Gentiles, just as he had given Peter the responsibility of preaching to the Jews.
For the same God who worked through Peter for the benefit of the Jews worked through me for the benefit of the Gentiles.
In fact, James, Peter, and John, who were known as pillars of the church, recognized the gift God had given me, and they accepted Barnabas and me as their co-workers. They encouraged us to keep preaching to the Gentiles, while they continued their work with the Jews.
References for Galatians 2:9
The only thing they suggested was that we remember to help the poor, and I have certainly been eager to do that.
But when Peter came to Antioch, I had to oppose him publicly, speaking strongly against what he was doing, for it was very wrong.
When he first arrived, he ate with the Gentile Christians, who don't bother with circumcision. But afterward, when some Jewish friends of James came, Peter wouldn't eat with the Gentiles anymore because he was afraid of what these legalists would say.
Then the other Jewish Christians followed Peter's hypocrisy, and even Barnabas was influenced to join them in their hypocrisy.
When I saw that they were not following the truth of the Good News, I said to Peter in front of all the others, "Since you, a Jew by birth, have discarded the Jewish laws and are living like a Gentile, why are you trying to make these Gentiles obey the Jewish laws you abandoned?