Galatians 2:6

But of these who seemed to be somewhat, ( whatsoever they were, it maketh no matter to me: God accepteth no man’s person:) for they who seemed to be somewhat in conference added nothing to me:

In conference at Jerusalem the leading apostles added nothing to Paul's knowledge or authority as an apostle. They did not instruct him and they did not give him his commission, for human rank and reputation do not determine calling. They recognized that God had called him to preach to the Gentiles just as Peter had been designated especially for the Jews. They accepted him as a fellow worker of equal standing, so their judgment confirmed rather than supplied his commission.