Joshua 5:3 in the World English Bible
Joshua made himself flint knives, and circumcised the sons of Israel at the hill of the foreskins.
Context
2 At that time the LORD said unto Joshua, Make thee sharp knives, and circumcise again the children of Israel the second time.
3 And Joshua made him sharp knives, and circumcised the children of Israel at the hill of the foreskins.
4 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.