Philippians 3:3 NIV
 For it is we who are the circumcision,   we who serve God by his Spirit, who boast in Christ Jesus,   and who put no confidence in the flesh—
Romans 2:29 NIV
 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.