Old Testament readings use the Septuagint , the Scripture the apostles quoted. Masoretic numbering shown for reference.Learn why

sackcloth

noun

Cloth of which sacks are made; coarse cloth. This word is chiefly used in Scripture to denote a cloth or garment worn in mourning, distress or mortification. Gird you with sackcloth and mourn before Abner. 2 Samuel 3:37; Esther 4:1-4; Job 16:15.