Joshua 8:19-21

Living Bible

¹⁹ And when the men in ambush saw his signal, they jumped up and poured into the city and set it on fire. ^20-21 When the men of Ai looked behind them, smoke from the city was filling the sky, and they had nowhere to go. When Joshua and the troops who were with him saw the smoke, they knew that their men who had been in ambush were inside the city, so they turned upon their pursuers and began killing them.