'Circumcise' in the Bible

At that time the LORD said unto Joshua, Make thee sharp knives, and circumcise again the children of Israel the second time.

And this is the cause why Joshua did circumcise: All the people that came out of Egypt, that were males, even all the men of war, died in the wilderness by the way, after they came out of Egypt.

And their children, whom he raised up in their stead, them did Joshua circumcise: for they were uncircumcised, because they had not circumcised them by the way.