Read 2 Kings 3:23 Using Other Translations
And they said, This is blood: the kings are surely slain, and they have smitten one another: now therefore, Moab, to the spoil.
And they said, "This is blood; the kings have surely fought together and struck one another down. Now then, Moab, to the spoil!"
“It’s blood!” the Moabites exclaimed. “The three armies must have attacked and killed each other! Let’s go, men of Moab, and collect the plunder!”