Galatians 1:17

But when it was the good pleasure of God, who separated me from my mother's womb, and called me thro...

to reveal his Son in me, that I might proclaim him among the Gentiles, I did not immediately confer ...

Then after three years I went up to Jerusalem to visit Cephas, and stayed with him fifteen days.

But of the other apostles I saw no one, except Jacob, the Lord's brother.