Acts 15:24
For as much as we have heard, that certain which went out from us have troubled you with words, subverting your souls, saying, You must be circumcised, and keep the law: to whom we gave no such commandment:
Torrey's Topical Textbook—AKJV

Galatians 6:12
As many as desire to make a fair show in the flesh, they constrain you to be circumcised; only lest they should suffer persecution for the cross of Christ.
Torrey's Topical Textbook—AKJV

Titus 1:10
For there are many unruly and vain talkers and deceivers, specially they of the circumcision:
Torrey's Topical Textbook—AKJV