in sackcloth and ashes

in sackcloth and ashes

Behaving in a way that shows one's penitence or remorse for one's misdeeds or poor behavior. Darren has been in sackcloth and ashes ever since his girlfriend broke up with him for cheating on her. There's no way to turn back time on the way I treated my brother growing up. All I can do now is stay in sackcloth and ashes.
See also: and, ash, sackcloth

in sackcloth and ashes

manifesting grief or repentance.
In the Bible, the wearing of sackcloth and the sprinkling ashes on your head were signs of penitence or mourning.
1999 Athletics Weekly It was their first focal point, the moment of truth when their season could blossom further in Seville or end in sackcloth and ashes.
See also: and, ash, sackcloth