2 Kings 3:21-25

21Now all the Moabites heard that the [three] kings had come up to fight against them, and all who were able to put on armor, as well as those who were older, were summoned and stood [together in battle formation] at the border.

22When they got up early the next morning, the sun shone on the water, and the Moabites saw the water across from them as red as blood.

23And they said, “This is blood! Clearly the kings have fought together, and have killed one another. Now then, Moab, to the spoil [and the plunder of the dead soldiers]!”

24But when they came to the camp of Israel, the Israelites rose up and struck the Moabites, so that they fled before them; and they went forward into the land, killing the Moabites [as they went].

25They destroyed the [walls of the] cities, and each man threw a stone on every piece of good land, covering it [with stones]. And they stopped up all the springs of water and cut down all the good trees, until they left nothing in Kir-hareseth [Moab’s capital city] but its stones. Then the [stone] slingers surrounded the city and destroyed it.