'Disguise' in the Bible

Jeroboam said to his wife, "Please get up and disguise yourself so that they will not know that you [are] the wife of Jeroboam, and go [to] Shiloh. Look, Ahijah the prophet is there, and he spoke concerning me [before I became] king over this people.

Then the king of Israel said to Jehoshaphat, "[I will] disguise myself and go into the battle, but you wear your robes." So the king of Israel disguised himself, and he went into the battle.