2 Kings 3:21-23

Amplified Bible

²¹ Now all the Moabites heard that the [three] kings had come up to fight against them, and all ^[a]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. ²² When 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. ²³ And 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]!”