Isaiah 58:4-5

Behold, you fast for contention and strife and to strike with a wicked fist. You do not fast like you do today to make your voice heard on high. 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?