Joshua 8:2-7

Do to Ai what you did to Jericho and its king, except this time, you may take the plunder, including livestock. Set an ambush behind the city.” Joshua and his entire army set out to attack Ai. He chose thirty thousand valiant warriors and sent them ahead by night with these instructions: “Now pay attention. Set an ambush behind Ai, but don’t hide very far away. Stay alert and ready for battle! I’ll lead the rest of the army and make a direct assault on the city, and when they come out to fight us, we’ll flee from them as we did the first time. When this happens, they’ll say to themselves, ‘Look! They’re running away from us, just like last time!’ And they’ll keep chasing us until we’ve lured them away from the city. While we’re running away from them, jump up from your hiding place, race into Ai, and seize it. YAHWEH, your God, will deliver the city into your hands!