Kenneth e hagin was a man greatly used by God to bring many to the Kingdom of God. You can search Him online, but here is a section i read from his book that you might find of interest
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Four Classes of Demons[/CENTER]
After Jesus finished talking to me about discerning of spirits, he reminded me Paul stated in Ephesians 6:12 that we “wrestle not against flesh and blood, but against principalities, against powers, against the rulers of the darkness of this world, against spiritual wickedness in high places.”
Jesus said there were four classes of demons or evil spirits: (1) principalities, (2) powers, (3) rulers of the darkness of this world, and (4) wicked spirits in the heavenlies. He explained the highest type of demon we have to deal with on earth is “rulers of the darkness of this world.” He spent some time talking to me about the fact that the Bible says the whole world lies in darkness.
The Bible tells us, though, in Colossians 1:13, that the Father has delivered us from the rulers of darkness: “Who hath delivered us from the power of darkness, and hath translated us into the kingdom of his dear Son.”
Paul was writing to the Church at Corinth when he said, “Be ye not unequally yoked together with unbelievers: for what fellowship hath righteousness with unrighteousness? and what communion hath light with darkness?” (2 Cor. 6:14). The unbelievers are called darkness and the believers are called light.
The Lord went on to tell me that all unsaved men and women, regardless of who they are, are in the kingdom of darkness. He said they are ruled or motivated by evil spirits, whether they want to admit it or not. It is easy, sometimes, to accept the fact that someone else is ruled by the devil. But it’s hard to admit it could happen to us.
Jesus told me these rulers of darkness are the most intelligent type of spirits. They rule over other spirits and tell them what to do. Besides dominating the unsaved, they dominate Christians who will walk in darkness. He told me he would show me how these spirits get hold of people. He said sometimes they finally possess people — even children of God, if they will let them.
Paul wrote to the Church at Ephesus and said, "Neither give place to the devil." That means not to give the devil any place in you. If he does have a place in you, it’s because you let him in.
[CENTER]How Possession Works[/CENTER]
In the vision that night I saw a woman I had met one time. I immediately recognized her because I had heard her sing at a convention. She was the wife of a minister I knew. I saw her like you would see a picture on television.
Jesus narrated the story that followed. He said this woman was his servant. She’d had a part in the ministry, but then the devil came. I saw an evil spirit. It seemed to sit on her right shoulder and whisper in her ear. She was a Christian and the devil wasn’t on the inside of her; he was on the outside. (But he’ll work from the outside and try to get inside.)
As Jesus narrated this story, he said this demon told the woman she was beautiful, but that she had been cheated in life. He told her she could have had fame, fortune, and popularity in the world.
Jesus said the woman knew this was the devil, and told Satan to get behind her. He said the spirit left for a season. I saw it run off and leave her. But after a time
it came back again and whispered into her ear that she was a beautiful woman. The devil told her again that in the world she could have had fame, popularity, and wealth.
Jesus said she began to entertain Satan’s suggestion. We can learn something important here. The only way the devil can get into you is through your mind. Your mind is the door to your spirit. One of Satan’s greatest weapons is suggestion.
Didn’t the devil suggest to Eve that the reason God didn’t want her to eat the forbidden fruit was because her eyes would be opened and she would become like God? She followed his suggestion. Jesus told me this woman began to entertain the suggestion that she was beautiful. She liked to think she was beautiful. (The Bible tells us in Ezekiel concerning the fall of Satan that he was lifted up in pride because of his beauty.) She felt she had been cheated in life. She felt she had been robbed. She felt in the world she could have had fame and fortune.
As I said, she was very outstanding. I had heard her sing at church conventions. She had whatever the world calls “it.” If she came in late for a service, men and women alike couldn’t keep from looking at her. She just had that “something” about her.
In the vision, she suddenly became like glass — transparent. And I could see something in her head that looked like a black dot. It was about as big as a half dollar. Jesus, in narrating, said, “She is now obsessed with that kind of thinking. But,” He said, “it isn’t too late — she still could do something about it.”
We’re supposed to think God’s thoughts. That woman was still God’s child. She could have put that thought out of her mind if she had wanted to. She could have refused to think like that. But she desired to think like that, so she continued. Somebody said, “You can’t help who may knock on your front door, but you can help who you invite into the living room and entertain.” Thoughts may come and go, but thoughts that are not put into actions or words will die unborn.
You may say, “I can’t control my thoughts.” Yes, you can unless the devil has taken over your spirit. Jesus told me this woman could have said from her spirit, “I’m not going to think like that. I resist you, Satan. I rebuke you in the Name of Jesus. Leave me!”
You see, if the devil is going to get into your spirit, he’s going to have to come through your mind. I am referring to believers. You can cast devils out of people without teaching them and still do them an injustice. A lot of times they don’t need a spirit cast out. They just need to rise up against it. And, like Jesus said, this woman could have done it.
The Bible tells us to cast down imaginations or reasonings. It tells us to cast down those things that exalt themselves against the knowledge of God, and to bring into captivity every thought to the obedience of Christ (2 Cor. 10:5).
Did He tell us to do something we can’t do? No, thank God, He didn’t. Now, quit saying, “I can’t.” As long as you talk unbelief, you’re going to be bound by unbelief.
This woman soon left her husband and the ministry. She went out into the world. I asked the Lord why He was showing me this. He said it was because He didn’t want me to pray for the woman. Also, He wanted me to know how demons and evil spirits get hold of people, even Christians if they will permit them to.
I asked Him if He wanted me to cast the devil out of this woman. She had left her husband and taken up with several different men at once. She wasn’t satisfied with one man. Jesus told me this thing finally got down into her spirit. It got into her heart. I saw the black dot go from her head down into the inside of her. She began to say she didn’t want the Lord Jesus anymore. She turned her back on Him. Before, she hadn’t completely turned her back on Him.
The Lord told me she could have this devil if she wanted it. He told me no one, not even Himself when He was on earth, exercised authority over human spirits. God Himself does not exercise authority over human spirits. Jesus did exercise authority over evil spirits and demons, and any believer in the Church can do that. But if a human spirit wants the condition to remain as it is, there is nothing another believer can do about it.
I asked the Lord if He wanted me to pray for her. But He told me then not to even pray. That came as a real jolt to me. I’d never heard of not praying for people!
I’m one who is a stickler for the Word of God, so I asked the Lord if this was scriptural. He told me to look at First John 5:16, which says, "If any man see his brother sin a sin which is not unto death, he shall ask, and he shall give him life for them that sin not unto death. There is a sin unto death: I do not say that he shall pray for it. " I never had heard anyone preach on this before.
He told me the reason I was not to pray for this preacher’s wife was that she had sinned the sin unto death. I told the Lord I still wasn’t satisfied with this. I wouldn’t accept any kind of vision, or experience, even if I saw Jesus 20 times in one day, if what He said couldn’t be proved by the written New Testament. I wouldn’t accept a word of it. I told Him that His Word says, “In the mouth of two or three witnesses every word may be established” (Matt. 18:16). I asked Him for more Scripture and He gave me Hebrews 6:4-6.
HEBREWS 6:4-6
For it is impossible for those who were once enlightened,
and have tasted of the heavenly gift, and were made par
takers of the Holy Ghost,
And have tasted the good word of God, and the powers
of the world to come,
If they shall fall away, to renew them again unto repen
tance; seeing they crucify to themselves the Son of God
afresh, and put him to an open shame.
Jesus said before one could be guilty of the sin unto death, all five things mentioned in that Scripture would have to apply to him.
First, it says, "For it is impossible for those who were once enlightened." He said that was what I had been calling “getting under conviction.” The preaching of the Word enlightens the sinner, as in the case of the prodigal son when he came to himself. Through the preaching of God’s Word the sinner sees himself lost.
Second, it says, "and have tasted of the heavenly gift." Jesus said a man under conviction has not yet tasted of the heavenly gift. You do not taste of the heavenly gift being under conviction, because Jesus said He is the heavenly gift. "For God so loved the world, that he gave his only begotten Son, that whosoever believeth in him
should not perish, but have everlasting life. "
Then third, "and were made partakers of the Holy Ghost." Jesus said that means more than becoming acquainted with the Holy Spirit and being born again; it means being filled with the Holy Spirit.
Then fourth, "And have tasted the good word of God." He said this can’t apply to baby Christians. They haven’t tasted the good Word of God. First Peter 2:2 tells us: "As newborn babes, desire the sincere milk of the word, that ye may grow thereby." Jesus said it was to be regretted that some believers act as they do. He pointed out the similarity between spiritual and physical growth. He said baby Christians can’t be guilty of this sin. They wouldn’t know what they were doing.
The fifth qualification is, "And have tasted the powers of the world to come." Jesus interpreted this part as meaning, “And have the gifts of the Spirit operating in their lives.” He said the baptism of the Holy Spirit with the ensuing gifts is the earnest of our inheritance in the world to come.
He told me this woman was enlightened, was born again, had tasted of the heavenly gift, was filled with the Holy Spirit, and had been in the ministry 20 years. She had experienced enough spiritual growth so that she wasn’t a spiritual baby anymore. She had the gifts of the Spirit operating in her life.
Jesus said He would have forgiven her if she had just been tempted and overcome by the devil. He told me she didn’t commit the sin unto death because she went off with another man. He explained if she’d had 100 men but turned back to Him He would have forgiven her. But Jesus told me she came to the place (without being tempted or overcome) that she deliberately said she didn’t want Him anymore.