'Disguise' in the Bible

The king of Israel suggested to Jehoshaphat, "I'll go into battle in disguise, but you keep your royal uniform on." So the king of Israel disguised himself and they both went into 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.