Galatians

Him would Paul have to go forth with him; and took and circumcised him because of the Jews which were in those quarters: for they knew all that his father was a Greek.

Forasmuch as we have heard, that certain which went out from us have troubled you with words, subverting your souls, saying, Ye must be circumcised, and keep the law: to whom we gave no such commandment:

Behold, I Paul say unto you, that if ye be circumcised, Christ shall profit you nothing.

For in Jesus Christ neither circumcision availeth any thing, nor uncircumcision; but faith which worketh by love.

And certain men which came down from Judea taught the brethren, and said, Except ye be circumcised after the manner of Moses, ye cannot be saved.