Galatians 2
1 Ref Then after the space of fourteen years I went up again to Jerusalem with Barnabas, taking Titus with me.
2 Ref And I went up by revelation; and I put before them the good news which I was preaching among the Gentiles, but privately before those who were of good name, so that the work which I was or had been doing might not be without effect.
3 Ref But not even Titus who was with me, being a Greek, was made to undergo circumcision: