The Scriptures indicate that Satan can oppress us, assault us, tempt us, slander us, and accuse us. But a Christian who is indwelled by the Holy Spirit cannot be possessed by a demon. Where the Spirit of the Lord is, there is liberty (2 Cor. 3:17). If a person indwelled by the Holy Spirit can at the same time be sovereignly controlled by an evil spirit, then our redemption is meaningless.
All this emphasis on Satan and demons tends to distract us from another very real menace, our own sin. Yes, there is a Devil. There are real demons. But there is also the reality of sin. Satan may be our accomplice in our ongoing sin, but we cannot pass the blame and responsibility for our sin to a controlling demon. We do not have to be possessed by a demon to get drunk. There is enough abiding wickedness in us to do it all by ourselves. We can never say, “The Devil made me do it.” We can say that we are tempted, incited, or seduced by Satan, but not that we are controlled or coerced by him.
There are two serious problems with the view that our sins are the result of controlling demons. The first is that we yield to the temptation to take no personal responsibility for our sin. How can we be responsible if in fact we are not able to resist? Second, we are lured into thinking that we are powerless without the aid of the deliverance minister. We are encouraged to think that we are not really guilty and that we are actually helpless without a minister with special powers of deliverance. This negates the entire biblical concept of sanctification. It is surely unbiblical to teach that we cannot lead lives pleasing to God unless some so-called expert on deliverance comes to our side. Therefore, I say with all urgency that believers must turn away from those who teach such things. Indeed, we should run for our spiritual lives."