Isaiah 58
3 Ref Why have we fasted, [say they], and you don't see? [why] have we afflicted our soul, and you take no knowledge? Behold, in the day of your fast you find [your own] pleasure, and exact all your labors.
4 Ref Behold, you fast for strife and contention, and to strike with the fist of wickedness: you don't fast this day so as to make your voice to be heard on high.