Joshua 8:10-13

Joshua was up early in the morning and mustered his army. He and the leaders of Israel led the troops to Ai. The whole army, fighting men all, marched right up within sight of the city and set camp on the north side of Ai. There was a valley between them and Ai. He had taken about five thousand men and put them in ambush between Bethel and Ai, west of the city. They were all deployed, the main army to the north of the city and the ambush to the west. Joshua spent the night in the valley.