2 Kings 3:19

15But now bring me a musician.” When the musician played, the LORD’s hand came on him.

16He said, “The LORD says, ‘Make this valley full of trenches.’

17For the LORD says, ‘You will not see wind, neither will you see rain, yet that valley will be filled with water, and you will drink, both you and your livestock and your other animals.

18This is an easy thing in the LORD’s sight. He will also deliver the Moabites into your hand.

19You shall strike every fortified city and every choice city, and shall fell every good tree, and stop all springs of water, and mar every good piece of land with stones.’”

20In the morning, about the time of offering the sacrifice, behold, water came by the way of Edom, and the country was filled with water.

21Now when all the Moabites heard that the kings had come up to fight against them, they gathered themselves together, all who were able to put on armor, young and old, and stood on the border.

22They rose up early in the morning, and the sun shone on the water, and the Moabites saw the water opposite them as red as blood.

23They said, “This is blood. The kings are surely destroyed, and they have struck each other. Now therefore, Moab, to the plunder!”