1 Kings 20:38
So the prophet departed, and waited for the king by the way, and disguised himself with ashes upon his face.
1 Kings 14:2
And Jeroboam said to his wife, Arise, I pray thee, and disguise thyself, that thou mayest not be known to be the wife of Jeroboam; and go to Shiloh: behold, there is Ahijah the prophet, who told me that I should be king over this people.
2 Samuel 14:2
And Joab sent to Tekoah, and brought thence a wise woman, and said to her, I pray thee, feign thyself to be a mourner, and put on now mourning apparel, and anoint not thyself with oil, but be as a woman that had a long time mourned for the dead:
1 Kings 22:30
And the king of Israel said to 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.
Matthew 6:16
Moreover, when ye fast, be not as the hypocrites, of a sad countenance: for they disfigure their faces, that they may appear to men to fast. Verily, I say to you, they have their reward.