"a warm material woven from goat's or camel's hair," and hence of a dark color, Revelation 6:12; Jerome renders it saccus cilicinus (being made from the hair of the black goat of Cilicia; the Romans called it cilicium); cp. Isaiah 50:3; it was also used for saddle-cloths, Joshua 9:4; also for making sacks, e.g., Genesis 42:25 , and for garments worn as expressing mourning or penitence, Matthew 11:21; Luke 10:13 , or for purposes of prophetic testimony, Revelation 11:3 .