Romans 2
23 Ref You who take pride in the law, are you doing wrong to the honour of God by behaviour which is against the law?
24 Ref For the name of God is shamed among the Gentiles because of you, as it is said in the holy Writings.
25 Ref It is true that circumcision is of use if you keep the law, but if you go against the law it is as if you had it not.