Verses with the word disguise in the Old Testament (3 verses):
1 Kings 14:2
And Jeroboam said to his wife, Arise, I pray thee, and disguise thyself, that thou be not known to be the wife of Jeroboam; and get thee to Shiloh: behold, there is Ahijah the prophet, which told me that I should be king over this people.
1 Kings 22:30
And the king of Israel said unto Jehoshaphat, I will disguise myself, and enter into the battle; but put thou on thy robes. And the king of Israel disguised himself, and went into the battle.
2 Chronicles 18:29
And the king of Israel said unto Jehoshaphat, I will disguise myself, and I will go to the battle; but put thou on thy robes. So the king of Israel disguised himself; and they went to the battle.