The enemy of God makes it his business to interfere with believers’ lives. However, he is unable to touch or alter the eternal life which indwells the believer via the Holy Spirit (1Jn 5:18). Even in extreme cases where God permits the evil one to cause physical harm, the Lord maintains spiritual security in Christ.
The Holy Spirit never moves over, nor does He move out of the believer in order to make room for demon possession. God the Spirit never moves to accommodate mutual possession of the child of God by the enemy of God. What a contradiction that would be! The very heart of the gospel is that “God is light, and in him is no darkness at all” (1 John 1:5). God the Holy Spirit, who is light, does not share his human temple (1Co 3:16) with demons of darkness.
The New Testament never gives instruction for casting demons out of a believer (Eph 6:10-18). Rather, believers are instructed to resist the devil (Jas 4:7; 1Pe 5:8-9). The reason is both simple and clear; a believer can never be possessed by a demon; therefore, you cannot cast out what is not there in the first place.
Integral to salvation is the Holy Spirit sealing repentant sinners the moment they believe (Eph 1:13). He seals their eternal destiny and is Himself God’s guarantee of fulfilment. Holy Spirit security is certain, unchangeable, and knowable. Your predetermined destination for which the Holy Spirit sealed you, is Heaven.
Christian, set your eyes on eternity and the fulfilment of your election in Christ. This hope compels believers not to “…grieve the Holy Spirit of God, by whom you were sealed for the day of redemption” (Ephesians 4:30). Paul boldly proclaimed; “he who began a good work in you will bring it to completion at the day of Jesus Christ” (Philippians 1:6).
For God’s part; “those whom he predestined he also called, and those whom he called he also justified, and those whom he justified he also glorified” (Romans 8:30). It’s a done deal beloved. Salvation has the immutable purpose of delivering God’s children to heavenly glory. Their heavenly destination is as certain as the sovereignty of God was in your election and justification. At no point does the Holy Spirit move out of the believer, leaving them unsaved and abandoned to darkness as they were before salvation.
In Christ alone, believers are secure! Neither the believer nor any power of darkness, can undo the saving work of Christ. Once born again, the powers of darkness can never take up residence within that regenerated child of God. Following salvation, the perpetual sufficiency of Christ’s justification makes it impossible for the sins of anyone else, including ancestors, to ever be laid against the believer.
No power of the devil, past, present, or future, shall be able to bring the child of God under His dominion again. “No, in all these things we are more than conquerors through him who loved us. For I am sure that neither death nor life, nor angels nor rulers, nor things present nor things to come, nor powers, nor height nor depth, nor anything else in all creation, will be able to separate us from the love of God in Christ Jesus our Lord” (Romans 8:37-39).
Praise God for such a full and secure salvation. Encourage other believers with these wonderful truths. Explain Christ’s gospel freedom to a non-believer so they too can discover the liberating life in Christ.