"You know what Joab son of Zeruiah did to me -- how he murdered two commanders of the Israelite armies, Abner son of Ner and Amasa son of Jether. During peacetime he struck them down like he would in battle; when he shed their blood as if in battle, he stained his own belt and the sandals on his feet.

The king of Israel said to Jehoshaphat, "I will disguise myself and then enter into the battle; but you wear your royal robes." So the king of Israel disguised himself and then entered into the battle.