Sin brings us to the danger of compartmentalizing our lives, our actions. We consider ourselves "decent, earnest Christians" save for the strange and flagrant outbursts that take place in secret, in the dark, and thus "don't really count". But it is in concealment that ugly and unhealthy things fester. One cannot compartmentalize any part of life- especially the Christian life, which is a call to nothing less than union and wholeness. Our first step is to completely rid ourselves of the notion that we are actually "decent, earnest Christians". The words Lord have mercy have no meaning for us until we do.