Joshua 8:2-4

Revised Standard Version

² and you shall do to Ai and its king as you did to Jericho and its king; only its spoil and its cattle you shall take as booty for yourselves; lay an ambush against the city, behind it.”

³ So Joshua arose, and all the fighting men, to go up to Ai; and Joshua chose thirty thousand mighty men of valor, and sent them forth by night. ⁴ And he commanded them, “Behold, you shall lie in ambush against the city, behind it; do not go very far from the city, but hold yourselves all in readiness;