We read that we are first "delivered from the power of darkness" then "translated into the kingdom" of Christ. This must happen in order for us to change countries, dominions and citizenship.
Before being "translated" into Christ's kingdom, we were "delivered" (rescued) from Satan's kingdom. Deliverance from "the power of darkness" comes before "translation" into God's kingdom at the point of Salvation.
We read in Matthew 12 of one coming to Christ who was "possessed with a devil" whom Christ healed. When the Pharisees heard of this they accused Him of casting the demon out by the power of "Beelzebub the prince of the devils."
As Christ goes on to respond to this accusation he explains that one cannot "enter into a strong man's house" unless he "first" bind him. The "house" is a person and the "strong man" is a demon. The term "strong man" means:- 'mighty, powerful or forcible one.' Christ explained that before He could enter the house - that is the person - He must "first bind the strong man." He can only then spoil his goods (Mt.12:22-29). The word "bind" means to place in bonds or to tie up.
Here is one demon 'possessing' (indwelling; inhabiting) one person. Christ had to "first" bind the demon which meant the act of casting the demon out (v28). To "cast out" means:- to eject; expel; drive out. Only then could he spoil (seize) the property.
The "strong man" and "Christ" cannot possess, inhabit and seize the house at the same time. It is one or the other. Christ of course is mightier than any demon and will not tolerate sharing a property - no matter how many separate rooms there are. In fact in Luke 11:22 Christ says that He: i) attacks him, ii) "overcomes" him - subdues, conquers, iii) and takes away his armour which he trusted in and which enabled him to rule the house.
No where in Scripture do we have teaching concerning a demon (strong man) dwelling in a person (house) at the same time as Christ or the Holy Spirit. In other words a true born-again Christian cannot have demons indwelling him.
In Mt.12:43-44, Christ speaks once more about an individual being indwelt by a demon and uses the example of the house again:
"When the unclean spirit is gone out of a man, he walketh through dry places, seeking rest, and findeth none. Then he saith, I will return into my house from whence I came out; and when he is come, he findeth it empty, swept, and garnished."
"Then goeth he, and taketh with himself seven other spirits more wicked than himself, and they enter in and dwell there: and the last state of that man is worse than the first."
Here is a demon who once indwelt an individual. We are told that he had "gone out" of that person - a term used in connection with "casting out" a demon. Although we are not told by what means he was expelled or left. This same demon returns to the same person (house) in order to inhabit it once more. He finds the house i) empty (vacant), ii) swept (cleaned out), iii) and garnished (set in order; decorated).
These are like those of whom Peter spoke, whom he likened unto pigs that had been washed, but who had not experienced a changed nature; a born-again experience in which Christ comes in to dwell (II Pet.2:18-22). They were clean but not indwelt by the person of Christ. This house was temporarily free of its demons. It was swept out and even made to look orderly with decorations but this person never allowed Christ to come in to dwell and to live His life in them.
Now when this demon returns with seven other wicked spirits, there is no one living there who can stop them re-entering and indwelling the person once again. Now they are in a worse state than previously. To play games with the things of God is dangerous.
If Christ had been living in that house, if He had been indwelling, this could not have happened. The only cure to indwelling demons is an indwelling Christ.