Can a Christian have a demon? When I began searching the Word of God about the matter of demons oppressing Christians, I discovered that the issue is not as conclusive as I had once
We are composed of three parts: a body, a mind (soul) and a spirit (1 Thessalonians 5:23). The spirit of a Christian belongs to God, and their spirit is united with the Holy Spirit, but their bodies and minds (souls) can still be afflicted, “demonized”, or even possessed by evil spirits. Think in terms of a glass of water. An evil spirit can possess the glass of water, but never own or be inside of it, hence our spirits are safe it is our souls and bodies that come under attack and need devils cast out of them.
Demons can, in some cases, even take over a Christian’s mind and speak through his lips (Matthew 16:22). I have seen demons control the psycho-motor functions of Christians, even putting them in a trance like state to speak through them.