Bible Verses About Sackcloth: The Jews lay in, when in deep affliction

And Rizpah the daughter of Aiah took sackcloth, and spread it for her upon the rock, from the beginning of harvest until water was poured upon them from heaven; and she suffered neither the birds of the heavens to rest on them by day, nor the beasts of the field by night.

And it came to pass, when Ahab heard those words, that he rent his clothes, and put sackcloth upon his flesh, and fasted, and lay in sackcloth, and went softly.

Gird yourselveswith sackcloth, and lament, ye priests; wail, ye ministers of the altar; come, lie all night in sackcloth, ye ministers of my God: for the meal-offering and the drink-offering are withholden from the house of your God.