1 Kings 20:38

and the prophet goeth and standeth for the king on the way, and disguiseth himself with ashes on his eyes.

1 Kings 14:2

and Jeroboam saith to his wife, 'Rise, I pray thee, and change thyself, and they know not that thou art wife of Jeroboam, and thou hast gone to Shiloh; lo, there is Ahijah the prophet; he spake unto me of being king over this people;

2 Samuel 14:2

and Joab sendeth to Tekoah, and taketh thence a wise woman, and saith unto her, 'Feign thyself a mourner, I pray thee, and put on, I pray thee, garments of mourning, and anoint not thyself with oil, and thou hast been as a woman these many days mourning for the dead,

1 Kings 22:30

And the king of Israel saith unto Jehoshaphat to disguise himself, and to go into battle, 'And thou, put on thy garments.' And the king of Israel disguiseth himself, and goeth into battle.

Matthew 6:16

'And when ye may fast, be ye not as the hypocrites, of sour countenances, for they disfigure their faces, that they may appear to men fasting; verily I say to you, that they have their reward.

Treasury of Scripture Knowledge

Summary

So the prophet departed, and waited for the king by the way, and disguised himself with ashes upon his face.

Bible References

Disguised

1 Kings 14:2
and Jeroboam saith to his wife, 'Rise, I pray thee, and change thyself, and they know not that thou art wife of Jeroboam, and thou hast gone to Shiloh; lo, there is Ahijah the prophet; he spake unto me of being king over this people;
1 Kings 22:30
And the king of Israel saith unto Jehoshaphat to disguise himself, and to go into battle, 'And thou, put on thy garments.' And the king of Israel disguiseth himself, and goeth into battle.
2 Samuel 14:2
and Joab sendeth to Tekoah, and taketh thence a wise woman, and saith unto her, 'Feign thyself a mourner, I pray thee, and put on, I pray thee, garments of mourning, and anoint not thyself with oil, and thou hast been as a woman these many days mourning for the dead,
Matthew 6:16
'And when ye may fast, be ye not as the hypocrites, of sour countenances, for they disfigure their faces, that they may appear to men fasting; verily I say to you, that they have their reward.