Joshua 5:2-4

Amplified Bible, Classic Edition

² At that time the Lord said to Joshua, Make knives of flint and circumcise the [new generation of] Israelites as before.

³ So Joshua made knives of flint and circumcised the sons of Israel at Gibeath-haaraloth.

⁴ And this is the reason Joshua circumcised them: all the males of the people who came out of Egypt, all the men of war, had died in the wilderness on the way after they came out of Egypt.