Paul Marshall in his book Heaven is Not My Home
Sin is not the story, it is the blight on the story. Sin distorts everything, perverts everything, corrupts everything. It is not sin that makes us bear children, but it is sin that makes childbearing painful. It is not sin that attracts men and women, but it is sin that fills our relationships with control and suspicion. It is not sin that makes music, but it is sin that fills our music with vanity and lust. It is not sin that makes us construct cities and towers, but it is sin that makes those towers symbols of pride and power. It is not sin that calls human beings to live and love, to make music and art, to work and create, to plant and harvest, to play and dance. But it is sin that undercuts and perverts them all. Sin does not create things. It has no originality, no creativity, no being in itself.
Sin lives off that which is good. It is a parasite, feeding greedily on the goodness of what God has made. No relation is of itself sinful, but sin corrupts every relation. No area of life is in itself out of the will of God, but we defy God's will in every area of life.
Sin only exists as a corruption of good. The best analogy that I know that can explain this is that sin and evil are like "rust". Rust only exists as a corruption of metal, it can't exist by itself. And that is the same with sin.