Daniel 9:3
3 Then I turned my face to the Lord God, seeking him by gprayer and pleas for mercy with fasting and sackcloth and ashes.
Isaiah 58:5
5 hIs such the fast that I choose,
ia 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?