Romans 2:29

(Romans 2:29) No, a person is a Jew who is one inwardly; and circumcision is circumcision of the heart, by the Spirit, not by the written code. Such a person’s praise is not from other people, but from God.

Lord, put Your mark on my heart – the sign that You have staked Your claim to my life. Cut away everything that keeps me from following You. You cannot be fooled by the outward signs of religion; for You do not look at the outward appearance. You look at the heart. As circumcision was the physical sign of Your covenant with Abraham, so let the circumcision of my heart be the sign of Your covenant with me.