In sin and error pining

Yes, friends, I am in sin and error pining today, for my sins are many and egregious.
( Things done and left undone )

So, what's my penance?

(BTW, if you don't recognize the title, it's from "O Holy Night," which is the Christmas carol I'm obsessively listening to this week.

O holy night, the stars are brightly shining
It is the night of our dear savior's birth
Long lay the world in sin and error pining
Till he appeared and a soul felt its worth

Two very different, but both completely amazing versions, are by:

Straight No Chaser

and Weezer