The LORD said unto Joshua, Make thee sharp knives, and circumcise again the children of Israel the second time. 5:2
Trivia: Why did God harden the hearts of Joshua's enemies in Joshua 11?
And according to 1 Kg 16:34 this prophecy was fulfilled, when Hiel rebuilt Jericho, laying the foundation with his oldest son and the gate with his youngest son "according the word of the Lord." 6:26