I'm Living In Sin
I'm borrowing from a conversation I had with a friend of mine. He told me about Jim Wallis statement that following Jesus was never intended to be about sin management. We don't come to church, read the BIble, and talk to God to keep us from sinning. We talk to God for the same reason I talk to my wife, because I care about our relationship. There are, unfortunately, a lot of men who are quite faithful to their wife who are still terrible husbands. They don't do anything wrong and that's about it.
I used to live a life of sin management (poorly I might add). A good day was one where I didn't partake in one of several personally emphasized sinful actions. It burnt me out, as Bono put it, "The repression of desires only makes them stronger."
The word for sin is hamartia which paints the picture of an archer and a target, the core of the target being the bullseye, in this case the heart of God, His desire. Hamartia means missing the mark, missing God's desire.
This opens up sin to be not only the things we shouldn't do but the things we should do that we don't. The catholic and anglican traditions divide this into groups of sins of comission and sins of omission. If I'm unfaithful to my wife, that is a sin of commission, when I know she needs my love and support, but instead get defensive about something, I am missing the mark of God's desire and am therefore sinning.
The point of following Jesus is to know Him, to see Him, and as a result be more like him,
"But friends, that's exactly who we are: children of God. And that's only the beginning. Who knows how we'll end up! What we know is that when Christ is openly revealed, we'll see him—and in seeing him, become like him. All of us who look forward to his Coming stay ready, with the glistening purity of Jesus' life as a model for our own." 1 John 3:5
To the extent that I'm not like Jesus, in any minor way, I am missing the mark, living in sin. I am not completely like Jesus, I haven't seen him. That is a hard truth.
May God have mercy.