Joshua 8:18-19

18Then the Lord said to Joshua, “1Stretch out the javelin that is in your hand toward Ai, for I will give it into your hand.” So Joshua stretched out the javelin that was in his hand toward the city.

19The men in ambush rose quickly from their place, and when he had stretched out his hand, they ran and entered the city and captured it, and they quickly set the city on fire.