In Romans 7, Paul showed us that Christians still wrestle with remaining, indwelling sin*. He says: “But what I hate I do”. But, at the same time, Christians have experienced a revolution in consciousness—a real disgust over sin and (now) an inability to find any lasting pleasure in it: “But what I hate I do.”
These two facts keep us from either the legalism that says: Real Christians don’t struggle with sin anymore, or the permissiveness that says: Real Christians are human; they sin just like anyone else. The Spirit of God has come in and transformed our “inner being” and self so we want God and holiness, but our “flesh” or “sinful nature” is still powerful enough to keep us from doing what our new desires want.
But Romans 7 does not say everything about the Christian life. Our new condition—a “double nature”—can actually lead to more distress unless we “live … according to the Spirit”. Paul gives us directions on how to live in the Spirit. Unless we do, we will find ourselves continually doing what we hate.