Joshua 8:16-20
English Standard Version
Chapter 8
16So all the people who were in the city were called together to pursue them, and as they pursued Joshua they were drawn away from the city. 17Not a man was left in Ai or Bethel who did not go out after Israel. They left the city open and pursued Israel.
18Then the Lord said to Joshua, "Stretch out the javelin that is in your hand toward Ai, for I will give it into your hand." And Joshua stretched out the javelin that was in his hand toward the city.
19And the men in the ambush rose quickly out of their place, and as soon as he had stretched out his hand, they ran and entered the city and captured it. And they hurried to set the city on fire.
20So when the men of Ai looked back, behold, the smoke of the city went up to heaven, and they had no power to flee this way or that, for the people who fled to the wilderness turned back against the pursuers.