Isaiah 58:4-5

Beholde, ye fast to strife and debate, and to smite with the fist of wickednesse: ye shall not fast as ye doe to day, to make your voyce to be heard aboue. Is it such a fast that I haue chosen, that a man should afflict his soule for a day, and to bowe downe his head, as a bull rush, and to lie downe in sackecloth and ashes? wilt thou call this a fasting, or an acceptable day to the Lord?