Romans 2:25-29

Revised Standard Version

²⁵ Circumcision indeed is of value if you obey the law; but if you break the law, your circumcision becomes uncircumcision. ²⁶ So, if a man who is uncircumcised keeps the precepts of the law, will not his uncircumcision be regarded as circumcision? ²⁷ Then those who are physically uncircumcised but keep the law will condemn you who have the written code and circumcision but break the law. ²⁸ For he is not a real Jew who is one outwardly, nor is true circumcision something external and physical. ²⁹ He is a Jew who is one inwardly, and real circumcision is a matter of the heart, spiritual and not literal. His praise is not from men but from God.