An antagonistic principle

I really enjoy the writing style of Octavius Winslow. He is eloquent and honest, and writes things in such a way that his words resonate with me. I have read two of his books, The Glory of the Redeemer and Personal Declension and Revival, and I have been going through his morning devotional the past few months. Below is an excerpt from yesterday's devotional:

Regeneration does not transform flesh into spirit. It proposes not to eradicate and expel the deep-seated root of our degenerate nature; but it imparts another and a superadded nature—it implants a new and an antagonistic principle. This new nature is divine; this new principle is holy: and thus the believer becomes the subject of two natures, and his soul a battlefield, upon which a perpetual conflict is going on between the law of the members and the law of the mind; often resulting in his temporary captivity to the law of sin which is in his members. Thus every spiritual mind is painfully conscious of the earthly tendency of his evil nature, and that from the flesh he can derive no sympathy or help, but rather everything that discourages, encumbers, and retards his spirit in its breathings and strugglings after holiness. A mournful sense of the seductive power of earthly things enters deeply into this state of mind. As we bear about with us, in every step, an earthly nature, it is not surprising that its affinities and sympathies should be earthly; that earthly objects should possess a magnetic influence, perpetually attracting to themselves whatever is congenial with their own nature in the soul of the renewed man. Our homeward path lies through a world captivating and ensnaring. The world, chameleon-like, can assume any color, and, Proteus-like, any shape, suitable to its purpose and answerable to its end. There is not a mind, a conscience, or a taste, to which it cannot accommodate itself. For the gross, it has sensual pleasures; for the refined, it has polished enjoyments; for the thoughtful, it has intellectual delights; for the enterprising, it has bold, magnificent schemes. The child of God feels this engrossing power; he is conscious of this seductive influence.