Isaiah 58:4-5

You quarrel and brawl, and then you fast; you hit each other violently with your fists. You shouldn’t fast as you are doing today if you want to make your voice heard on high. Is this the kind of fast I choose, a day of self-affliction, of bending one’s head like a reed and of lying down in mourning clothing and ashes? Is this what you call a fast, a day acceptable to the LORD?