Galatians 2:1-3 RSV

1 Then after fourteen years I went up again to Jerusalem with Barnabas, taking Titus along with me.
2 I went up by revelation; and I laid before them (but privately before those who were of repute) the gospel which I preach among the Gentiles, lest somehow I should be running or had run in vain.
3 But even Titus, who was with me, was not compelled to be circumcised, though he was a Greek.