Joshua 5:1-3

1Now it happened when all the kings of the Amorites who were beyond the Jordan to the west, and all the kings of the Canaanites who were by the sea, heard that the Lord had dried up the waters of the Jordan before the Israelites until they had crossed over, their hearts melted [in despair], and there was no [fighting] spirit in them any longer because of the Israelites [and what God had done for them].

2At that time the Lord said to Joshua, “Make for yourself flint knives and circumcise the [new generation of the] sons of Israel as [was done] before.”

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