Flavius Josephus, Antiquities of the Jews
William Whiston, A.M., Ed.

[153] Over this he wore a linen vestment, made of fine flax doubled: it is called Chethone, and denotes linen, for we call linen by the name of Chethone. This vestment reaches down to the feet, and sits close to the body; and has sleeves that are tied fast to the arms: it is girded to the breast a little above the elbows, by a girdle often going round, four fingers broad, but so loosely woven, that you would think it were the skin of a serpent. It is embroidered with flowers of scarlet, and purple, and blue, and fine twined linen, but the warp was nothing but fine linen. The beginning of its circumvolution is at the breast; and when it has gone often round, it is there tied, and hangs loosely there down to the ankles: I mean this, all the time the priest is not about any laborious service, for in this position it appears in the most agreeable manner to the spectators; but when he is obliged to assist at the offering sacrifices, and to do the appointed service, that he may not be hindered in his operations by its motion, he throws it to the left, and bears it on his shoulder. Moses indeed calls this belt Albaneth; but we have learned from the Babylonians to call it Emia, for so it is by them called. This vestment has no loose or hollow parts any where in it, but only a narrow aperture about the neck; and it is tied with certain strings hanging down from the edge over the breast and back, and is fastened above each shoulder: it is called Massabazanes.