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

And Rizpah the daughter of Aiah took sackcloth and spread it out for herself on a rock. From the beginning of the harvest until the rain from heaven poured down on the bodies, she did not allow the birds of the air to rest on them by day, nor the beasts of the field by night.

When Ahab heard these words, he tore his clothes, put on sackcloth, and fasted. He lay down in sackcloth and walked around meekly.

Put on sackcloth and lament, O priests; wail, O ministers of the altar. Come, spend the night in sackcloth, O ministers of my God, because the grain and drink offerings are withheld from the house of your God.