I think it is safe to say. though, that as long as we live in these corruptible bodies, deteriorating because of the Fall, that our worship falls short of what even we wish it to be. Our minds wander, our noses itch, our stomachs grumble. We are supposed to be meditating on a portion of scripture and all of a sudden we're wondering what the score of the Braves' game is.

Because of the Fall, and because we live in bodies made of dust from the cursed ground, eating food made of dust from the cursed ground, etc., we cannot love God as we long to do. Our hearts groan for the day when we will be free from corruption, free from the presence of sin; free to love as we ought, unencumbered by corrupted flesh.

New creation (2 Cor 5:17) is one of those "already and not yet" things that can confuse or frustrate us. One one hand, "old things have passed away and new things have come," but on the other, "it does not yet appear what we shall be; but when He appears we will be like Him (1 John 3:2)."

I don't think the popular idea that believers have "two natures" is accurate. I would think it clearer to say believers have one single new nature - spiritual and perfect, born of God; dwelling in corrupt, weak, decaying, sinful bodies that cannot accommodate the desires of the regenerate heart.