Romans 2:27

“You search the Scriptures because you think that in them you have eternal life; it is these that bear witness about Me;

“Do not think that I will accuse you to the Father; the one who accuses you is Moses, in whom you have set your hope.

in that they demonstrate the work of the Law written in their hearts, their conscience bearing witness and their thoughts alternately accusing or else defending them,

For indeed circumcision is of value if you practice the Law, but if you are a transgressor of the Law, your circumcision has become uncircumcision.

So if the uncircumcised man observes the righteous requirements of the Law, will not his uncircumcision be counted as circumcision?

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

What then? Are we better? Not at all; for we have already charged that both Jews and Greeks are all under sin;

Circumcision is nothing, and uncircumcision is nothing, but what matters is the keeping of the commandments of God.

and that from childhood you have known the sacred writings which are able to make you wise unto salvation through faith which is in Christ Jesus.