2 Kings 3:21-25

21All Moab had heard that the kings had come up to fight against them. So all who could bear arms, from the youngest to the oldest, were summoned and took their stand at the border.

22When they got up early in the morning, the sun was shining on the water, and the Moabites saw that the water across from them was red like blood.

23“This is blood!” they exclaimed. “The kings have crossed swords and their men have killed one another. So, to the spoil, Moab!”

24However, when the Moabites came to Israel’s camp, the Israelites attacked them, and they fled from them. So Israel went into the land attacking the Moabites.

25They would destroy the cities, and each of them would throw a stone to cover every good piece of land. They would stop up every spring and cut down every good tree. This went on until only the buildings of Kir-hareseth were left. Then men with slings surrounded the city and attacked it.