Thematic Bible: Whose circumcision is made uncircumcision

For circumcision indeed profits if thou keep the law; but if thou be a law-transgressor, thy circumcision is become uncircumcision. If therefore the uncircumcision keep the requirements of the law, shall not his uncircumcision be reckoned for circumcision, and uncircumcision by nature, fulfilling the law, judge thee, who, with letter and circumcision, art a law-transgressor?