Joshua 8:2-4

International Standard Version

² Do to Ai and its king as you did to Jericho and its king, but take its spoil and its livestock as war booty for yourselves. Set an ambush around the city.”

³ So Joshua and all of the fighting men prepared to go out against Ai. Joshua selected 30,000 valiant warriors and sent them out by night, ⁴ telling them, “Pay attention now! You are to set up an ambush around the city. Don’t go very far from the city, and all of you remain on alert.