2 Kings 3:20-27

The next morning, about the time the sacrifice was offered, water came from the direction of Edom and filled the valley. All the Moabites heard that the kings had come up to fight against them. So they gathered everyone old enough to put on armor and waited at the border. But when the Moabites got up early in the morning, the sun was shining on the water. They saw the water across from them, and it looked as red as blood. Then they said, “This is blood! The kings must have fought and killed each other! Come, Moabites, let’s take the valuables from the dead bodies!” When the Moabites came to the camp of Israel, the Israelites came out and fought them until they ran away. Then the Israelites went on into the land, killing the Moabites. They tore down the cities and threw rocks all over every good field. They stopped up all the springs and cut down all the good trees. Kir Hareseth was the only city with its stones still in place, but the men with slingshots surrounded it and conquered it, too. When the king of Moab saw that the battle was too much for him, he took seven hundred men with swords to try to break through to the king of Edom. But they could not break through. Then the king of Moab took his oldest son, who would have been king after him, and offered him as a burnt offering on the wall. So there was great anger against the Israelites, who left and went back to their own land.