'Disguise' in the Bible

And the king of Israel said unto Jehoshaphat, I will disguise myself, and will go to the battle; but put thou on thy robes. So the king of Israel disguised himself; and they went to the battle.

But Josiah wouldn't turn around. In fact, he put on a disguise so he could fight Neco. He wouldn't listen to what God told him through what Neco had to say, and as a result, Josiah came to attack Neco on the Megiddo plain.