'Circumcise' in the Bible

So circumcise your heart, and stiffen your neck no longer.

“Moreover the Lord your God will circumcise your heart and the heart of your descendants, to love the Lord your God with all your heart and with all your soul, so that you may live.

At that time the Lord said to Joshua, “Make for yourself flint knives and circumcise again the sons of Israel the second time.”

“Circumcise yourselves to the LordAnd remove the foreskins of your heart,Men of Judah and inhabitants of Jerusalem,Or else My wrath will go forth like fireAnd burn with none to quench it,Because of the evil of your deeds.”

And it happened that on the eighth day they came to circumcise the child, and they were going to call him Zacharias, after his father.

For this reason Moses has given you circumcision (not because it is from Moses, but from the fathers), and on the Sabbath you circumcise a man.

But some of the sect of the Pharisees who had believed stood up, saying, “It is necessary to circumcise them and to direct them to observe the Law of Moses.”

and they have been told about you, that you are teaching all the Jews who are among the Gentiles to forsake Moses, telling them not to circumcise their children nor to walk according to the customs.