Melachim Bais 3:21-23

Orthodox Jewish Bible

²¹ And when kol Mo’av heard that the melachim were come up to fight against them, they gathered all that could bear arms, and older, and stood at the border.

²² And they rose up early in the boker, and the shemesh shone upon the mayim, and Mo’av saw the mayim on the other side, and to them it looked as red as dahm;

²³ And they said, This is dahm; the melachim are surely slain, and they have struck one another; now therefore, Moav, to the plunder!