... When we become a Christian, he said, God takes out our spirit and replaces it with his Spirit. So God literally lives inside of us. The Spirit inside us is not able to sin, like 1 John 3:9 says, because it is God's Spirit. But because we still have a human body and soul, though, we might still sin.
I can't remember if he said the sinful nature was in our human spirit, so that God takes our sinful nature out when we are saved. But you can see that a statement like, "What you do flows from what you are," becomes literal. We have God inside as part of us, so it is only natural that we would act a certain way.
I remember thinking to myself, Wow, that is brilliant. Brilliant and bizzare. Brilliant, bizzare, and probably not really what the biblical authors had in mind. (I also thought of Apollinarianism)
Man, I could start my own cult by going hog wild creative with this. So your body is why you can still sin after having your sin nature taken out. But because our resurrection bodies will be spiritual bodies, we will never sin in heaven. We will neither have the sin nature nor the body that is weak toward sin.
Then the soul is where our mind, emotions, and will are. This is the part of us that gets transplanted into our heavenly, resurrection body, along with God's Spirit that will still be inside us. So we'll still have our basic personality and memories.
This is what happens when you take things literally that are really more like metaphors and pictures... or is this actually the way it works?????