Romans 2:25-29

²⁵For circumcision indeed profits, if you be a doer of the law, but if you be a transgressor of the law, your circumcision has become uncircumcision. ²⁶If therefore the uncircumcised keep the ordinances of the law, won`t his uncircumcision be accounted as circumcision? <sup>27</sup>Won`t the uncircumcision which is by nature, if it fulfills the law, judge you, who with the letter and circumcision are a transgressor of the law? ²⁸For he is not a Jew who is one outwardly, neither is that circumcision which is outward in the flesh; ²⁹but 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 from men, but from God.