the Holy Spirit indwells our recreated spirit meaning the human spirit that has been recreated in God's image meaning He does not dwell in the soul of Man once Man is saved in spirit, and believe it or not you can have demons in your soul all the while the Holy Spirit dwells or indwells your spirit since we are spirit, soul and body. Supernatural Deliverance is necessary if it's done right because Jesus did it all the time and He gave His first disciples the authority and power to do likewise and so must we but it has to be done by the Spirit of God.