Acts 15:1
And certain men which came down from Judaea taught the brothers, and said, Except you be circumcised after the manner of Moses, you cannot be saved.
Nave's Topical Index—AKJV

Galatians 2:1-9
Then fourteen years after I went up again to Jerusalem with Barnabas, and took Titus with me also.
Nave's Topical Index—AKJV