Romans 2:27-31

And he who is physically uncircumcised, if he keeps the Law, will he not judge you who though having the letter of the Law and circumcision are a violator of the Law?

For he is not a Jew who is one outwardly, nor is circumcision that which is outward in the flesh.

But he is a Jew who is one inwardly; and circumcision is of the heart, by the Spirit, not by the letter; and his praise is not from people, but from God.