Romans 2:29 in the King James Version
But he is a Jew, which is one inwardly; and circumcision is that of the heart, in the spirit, and not in the letter; whose praise is not of men, but of God.
Context
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 from men, but from God.