2 Kings 3:20-27

About the time for the grain offering  the next morning, water suddenly came from the direction of Edom and filled the land. All 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. When 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.  “This is blood! ” they exclaimed. “The kings  have crossed swords  and their men have killed one another. So, to the spoil, Moab! ” However, 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. They 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. When the king of Moab saw that the battle was too fierce for him, he took seven hundred swordsmen with him to try to break through to the king of Edom,  but they could not do it. So he took his firstborn son,  who was to become king in his place, and offered him as a burnt offering on the city wall. Great wrath was on the Israelites, and they withdrew from him and returned to their land.