I can clothe the sky in darkness; I can cover it with sackcloth.”

So I turned my attention to the Lord God to implore him by prayer and requests, with fasting, sackcloth, and ashes.

Is this really the kind of fasting I want? Do I want a day when people merely humble themselves, bowing their heads like a reed and stretching out on sackcloth and ashes? Is this really what you call a fast, a day that is pleasing to the Lord?