Romans 2
27 Ref 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?
28 Ref For he is not a Jew who is one outwardly, neither is that circumcision which is outward in the flesh;
29 Ref 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 from men, but from God.