Joshua 8:18-19

18Then the Lord said to Joshua, “Reach out with the spear that is in your hand [and point it] toward Ai, for I will give it into your hand.” So Joshua reached out with the spear in his hand [and pointed it] toward the city.

19The [men in] ambush emerged quickly from their [hiding] place, and when Joshua stretched out his hand they ran and entered the city and captured it, and quickly set the city on fire.