I think of this often and wonder about the over inclination to blame the supernatural for what might just be our own nature. If I look at my own humanity and desires the devil could leave me alone and eventually i would do everything That the devils nature is by my own sinful desires. The nature of the devil is my own weakness and desire to sin. If I am not close to God the devil has not got to do anything to make me stumble and be led into temptation. Its really hard to discern what demons are up to because you cant see them but I am very suspicious though there may not be one in every corner of the house all the time. I dont think its right for us to live in fear or attribute everything we do wrong to the supernatural.
There are powers and entities in the world, the purpose of which is to destroy and consume that which is dead or dying. We see it in name when we look at carrion birds, worms and maggots. It isn't pretty and it isn't nice, but they serve to cleanse the world of filth.
I'm not exaggerating one iota when I say that fallen angels serve a similar purpose. Can any of them for one moment foil the designs and plans and righteousness of God?
Yet men partner with them on a daily basis. We even see fools worship these spiritual carnivors. Their purpose is to destroy and to lie, cheat and steal. It is not the purpose of God to allow wickedness to prosper and so the demons enter in to destroy that which sinners pile up for themselves.
And it is true also that those who are named in Christ should suffer the pains of spiritual assault as well. Judgment begins in the house of God and no Christian is exempt from the assaults of the devil and the world. The entire nation of Hebrews were saved out of Egypt, but they were no sooner set free then they began to wail and scream and demonstrate to be returned to slavery. But God would not. Instead the whole crowd died in the desert, never seeing the land promised to them.
The question that should be asked and answered is NOT whether demons can possess a Christian body, but what the nature of salvation and sanctification might be instead.
Few know the correct answer - saying only that church membership seals them against demons. A church membership card is not fireproof, neither is it warranty against demonic effect upon the saved.
Bottom line is that if you are saved, you should act like it. If you entertain sin and flirt with sin, you will surely and certainly find yourself manipulated unto destruction by demons. It hurts you to kick against the goads....and the hurt is delivered by the carrion birds of the kingdom of fallen angels..
and that's just me, hollering from the choir loft...