1 Kings 21:27

Now it happened that when the king heard the words of the woman, he tore his clothes—now he was passing by on the wall—and the people looked, and behold, he had sackcloth beneath on his body.

Then Jehu said to Bidkar his officer, “Lift him up and cast him into the property of the field of Naboth the Jezreelite, for I remember when you and I were riding together after Ahab his father, that Yahweh lifted up this oracle against him:

“Know then that nothing from the word of Yahweh, which Yahweh spoke concerning the house of Ahab, shall fall to the earth. Indeed, Yahweh has done what He spoke by the hand of His servant Elijah.”

Now it happened that when King Hezekiah heard it, he tore his clothes, covered himself with sackcloth, and entered the house of Yahweh.

Then David lifted up his eyes and saw the angel of Yahweh standing between earth and heaven, with his drawn sword in his hand stretched out over Jerusalem. Then David and the elders, covered with sackcloth, fell on their faces.

“What shall I say? Indeed, He has spoken to me, and He Himself has done it; I will wander about all my years because of the bitterness of my soul.

“Is it a fast like this which I choose, a day for a man to afflict himself? Is it for bowing one’s head like a reed And for spreading out sackcloth and ashes as a bed? Will you call this a fast, even an acceptable day to Yahweh?

Yet the king and all his servants who heard all these words were not in dread, nor did they tear their garments.

Gird yourselves with sackcloth And lament, O priests; Wail, O ministers of the altar! Come, spend the night in sackcloth, O ministers of my God; For the grain offering and the drink offering Are withheld from the house of your God.

Then God saw their works, that they turned from their evil way, so God relented concerning the evil which He had spoken He would bring upon them. And He did not bring it upon them.

“And I will give authority to my two witnesses, and they will prophesy for 1,260 days, clothed in sackcloth.”