Joshua 8:23-29

23But they captured the king of Ai alive and brought him to Joshua.

24After Israel had finished killing all the inhabitants of Ai in the field in the wilderness where they pursued them, and all of them were fallen by the edge of the sword until they were consumed, all Israel returned to Ai and struck it with the edge of the sword.

25All who fell that day, both men and women, were 12,000—all the people of Ai.

26For Joshua did not draw back his hand with which he stretched out the javelin, until he had utterly destroyed all the inhabitants of Ai.

27Only the cattle and the spoil of that city Israel took as their plunder, according to the word of Adonai which He had commanded Joshua.

28So Joshua burnt Ai and made it a permanent heap of desolation to this day.

29Then he hanged the king of Ai on a tree until evening. At sunset Joshua commanded that they take his carcass down from the tree, cast it at the entrance of the gate of the city, and piled over it a great heap of stones, which remains to this day.