Isaiah 58:3; Isaiah 58:5

3 'Why have we fasted and You do not see? Why have we humbled ourselves and You do not notice?' Behold, on the day of your fast you find your desire, And drive hard all your workers.

5 "Is it a fast like this which I choose, a day for a man to humble himself? Is it for bowing one's head like a reed And for spreading out sackcloth and ashes as a bed? Will you call this a fast, even an acceptable day to the LORD ?