1 Corinthians 6:19–20 is often weaponized as condemnation — "your body is a temple, so you should be ashamed of what you're doing to it." But Paul's argument moves in the opposite direction. The premise is worth, not condemnation. Your body is where the Holy Spirit lives; it was bought at a price; God values it specifically. The call to glorify God in the body is empowerment language, not shame language. Seeking medical support for nicotine addiction — patches, medication, behavioral therapy — is applying wisdom to a body that God values.
Romans 8:13 describes the process: "if ye through the Spirit do mortify the deeds of the body, ye shall live." The word "mortify" — thanatoute — means to put to death, to make inoperative. This is active work, done through the Spirit's power, not through willpower alone. The Spirit is not passive in the process of breaking physical compulsion.
Commentary is from a charismatic Protestant perspective, drawing on KJV text and public-domain sources including Spurgeon, Andrew Murray, and Matthew Henry.