Here’s something written by Derek Prince, in his book, “You shall expel demons”
In Ephesians 5:18 Paul gives us two words of instruction. The first is negative: “Do not be drunk with wine.” The second is positive: “Be filled with the Spirit.” Most Christians would acknowledge that it is wrong to be drunk. Yet how many believe it is equally wrong not to be filled with the Spirit?
The infilling of the Holy Spirit is an essential part of God’s provision for victorious living. Paul speaks of this infilling in the continuing present tense: “Be continuously filled.” He is speaking not about a onetime experience but, in the next three verses, about a lifestyle:
• Singing praises continually to the Lord
• Being unceasingly thankful to God the Father
• Being humbly submissive to one another
As the Holy Spirit fills you continuously in this way, demons will find in you no vacant area that they can occupy!