Romans 2:25-29

American Standard Version

²⁵ For circumcision indeed profiteth, if thou be a doer of the law: but if thou be a transgressor of the law, thy circumcision is become uncircumcision. ²⁶ If therefore the uncircumcision keep the ordinances of the law, shall not his uncircumcision be reckoned for circumcision? ²⁷ and shall not the uncircumcision which is by nature, if it fulfil the law, judge thee, who with the letter and circumcision art a transgressor of the law? ²⁸ For he is not a Jew who is one outwardly; neither is that circumcision which is outward in the flesh: ²⁹ but he is a Jew who is one inwardly; and circumcision is that of the heart, in the spirit not in the letter; whose praise is not of men, but of God.