Romans 2:28-29

For he is not a Jew, who is one outwardly; nor is that circumcision, which is outward in flesh;

Colossians 2:11

in Whom ye were also circumcised with a circumcision not made with hand, in the putting off of the body of the flesh, in the circumcision of Christ;

James 4:6-7

But He giveth more grace Wherefore, the Scripture says, "God resisteth the proud, but giveth grace 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
But He giveth more grace Wherefore, the Scripture says, "God resisteth the proud, but giveth grace to the humble."