Joshua 8:18-22

Then YAHWEH spoke to Joshua and said, “Now, take the spear in your hand and point it toward Ai, for I will hand the city over to you!” So Joshua pointed his spear toward the city, and when Joshua gave this signal, all the men waiting in ambush behind the city jumped up from their position and poured into Ai. They quickly captured it and set it on fire. When the men of Ai looked back, they saw the smoke of their city rising to the sky. Joshua and his men also saw the smoke and knew that the other Israelite soldiers had captured the city and had set it on fire. The army of Ai had no place to escape, so Joshua and his men turned on them and began killing them. The men who had taken the city came out and joined the battle, so the Israelites had them surrounded. Israel cut them down, leaving neither survivors nor fugitives.