Sackcloth. A coarse black cloth commonly made of hair, Revelation 6:12, such as that of goats or camels. It was used for straining liquids, for sacks, and for mourning garments. Sometimes it was worn under the ordinary clothes, bound upon the loins, or instead of any other kind of dress; occasionally it was spread on the ground to be lain upon. Genesis 37:34; 1 Kings 21:27; 2 Kings 6:30; Isaiah 58:5; Joel 1:8; Jonah 3:5-6; Jonah 3:8. Deep sorrow was hence denoted by sackcloth and ashes. Matthew 11:21. Such garments were sometimes the dress of prophets and ascetics. Isaiah 20:2; Zechariah 13:4.