[Starstruck]

No doubt, and true repentance necessarily contains the desire to do penance. Without that desire, the repentance is not authentic.

You have me at a disadvantage. I can find the word repentance in the my Bible so I can understand its meaning as pertaining to things of the spirit, but I can not find the word penance. Could you use another word that might enlighten me?

[Trailerpark Badass]

The most important, and first, component of penance is contrition.

But, I would suppose you consider THAT a "filthy rag."