Acts 15:1-10,24
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 2:3-5
But neither Titus, who was with me, being a Greek, was compelled to be circumcised:
Nave's Topical Index—AKJV