2 Kings 3:21-25

21Now when all the Moabites heard that the kings were come up to fight against them, they gathered themselves together, all that were able to put on armor, and upward, and stood on the border. 22And they rose up early in the morning, and the sun shone upon the water, and the Moabites saw the water over against them as red as blood: 23and they said, This is blood; the kings are surely destroyed, and they have smitten each man his fellow: now therefore, Moab, to the spoil. 24And when they came to the camp of Israel, the Israelites rose up and smote the Moabites, so that they fled before them; and they went forward into the land smiting the Moabites. 25And they beat down the cities; and on every good piece of land they cast every man his stone, and filled it; and they stopped all the fountains of water, and felled all the good trees, until in Kir-hareseth only they left the stones thereof; howbeit the slingers went about it, and smote it.