Isaiah 58:5

5 aIs such the fast that I choose,
ba day for a person to humble himself?
Is it to bow down his head like a reed,
and to spread sackcloth and ashes under him?
Will you call this a fast,
and a day acceptable to the Lord?

Daniel 9:3

3Then I turned my face to the Lord God, seeking him by cprayer and pleas for mercy with fasting and sackcloth and ashes.
Copyright information for ESV