Romans 2:28-29

For a man who is only a Jew outwardly is not a real Jew; nor is outward bodily circumcision real circumcision. The real Jew is the man who is a Jew in soul;

Colossians 2:11

By your union with him you received a circumcision that was not performed by human hands, when you threw off the tyranny of the earthly body, and received the circumcision of the Christ.

James 4:6-7

No; the gift that God gives is for a nobler end; and that is why it is said--'God is opposed to the haughty, but gives help to the humble.'

Treasury of Scripture Knowledge

Summary

Circumcise therefore the foreskin of your heart, and be no more stiffnecked.

Stiff-necked

Bible References

Stiff-necked

James 4:6
No; the gift that God gives is for a nobler end; and that is why it is said--'God is opposed to the haughty, but gives help to the humble.'