Isaiah 58:3-4

They say, Why have we kept ourselves from food, and you do not see it? why have we kept ourselves from pleasure, and you take no note of it? If, in the days when you keep from food, you take the chance to do your business, and get in your debts; If keeping from food makes you quickly angry, ready for fighting and giving blows with evil hands; your holy days are not such as to make your voice come to my ears on high.