The New Testament makes it clear that there is the possibility of demons entering into people and manifesting themselves. The expulsion of demons by Christ and His apostles is strong evidence of His identity and that he is the Messiah (Matthew 12:22, 23; 28, 29; Acts 2:22; 10:38).
The apostles and evangelists substantiated the truth of the Gospel through miracles among which included the expulsion of demons (Acts 5:16; 8:7; 16:16-18; 19:12).
The Bible does not use the term “demonic possession”. The word in the Greek “daimonizomai” means to have a demon or to be demonized. The Bible speaks of people possessing demons and not demons possessing people. We will see all of the examples given in the Gospels.
The term demonized means “under the power of demons”. Some English versions translate the term “possessed of demons”, or “those who had evil spirits” (Matthew 4:24; 8:16; 28; 33; 12:22; 15:22; Mark 1:32; 5:15, 16; 18 Luke 8:36).
The rest of the Scriptures translate the term as “to have a demon” (Matthew 11:18; Luke 7:33; John 7:20; 8:48, 49; 52; 10:20, 21), “a man who had an unclean spirit” (Luke 4:33), “a certain man from the city who had demons for a long time” (Luke 8:27).
Observing biblical teaching, we conclude that the term “demonic possession” is incorrect, since it is not a demon that possesses the man, but the man who has the demon. This means that a demonized person has an evil spirit inside of him.
CASTING OUT DEMONS
Jesus entrusted the authority of His name along with the weapons from God to the Church for the task of freeing the captives. The Ministry of deliverance is the responsibility of the church. Deliverance is the process by which God uses his servants to free human beings from the influence and power of demons. Jesus delegated His authority over Satan and his hosts to the church (Matthew 10:1; 18:18; 28:18; Mark 3:14, 15; 16:17; Luke 10:19).
The authority of the name of Jesus
The casting out of demons was an important part of the ministry of Jesus (1 John 3:8). Freeing the oppressed from the hands of the devil was an integral part of the activities of Jesus (Acts 10:38). Luke recorded the reaction of the people during this ministry.
Now in the synagogue there was a man who had a spirit of an unclean demon. And he cried out with a loud voice, saying, “Let us alone! What have we to do with You, Jesus of Nazareth? Did You come to destroy us? I know who You are — the Holy One of God!” But Jesus rebuked him, saying, “Be quiet, and come out of him!” And when the demon had thrown him in their midst, it came out of him and did not hurt him. Then they were all amazed and spoke among themselves, saying, “What a word this is! For with authority and power He commands the unclean spirits, and they come out.” (Luke 4:33-36)
The endowment with power
In a large measure authority and power are proved by the baptism of the Holy Spirit (Acts 1 8). This is the result of a relationship. The seven sons of Sceva attempted to use the name of Jesus to cast out demons, but they did not obey. They did not know Jesus. Our power and authority are a result of our relationship with Him. In the new birth, God regenerates us, in the baptism of the Holy Spirit, we submit ourselves to Him as the baptizer.
Jesus made it clear that the power to cast out demons comes from the Holy Spirit:
But if I cast out demons by the Spirit of God, surely the kingdom of God has come upon you. (Matthew 12:28)
But if I cast out demons with the finger of God, surely the kingdom of God has come upon you. (Luke 11:20)
The Spirit of God is the finger of God. The finger of God is the word of command given in authority. The church has the Spirit as well as the Word.
The name of Jesus
Jesus is in the highest position of authority: at the right hand of the father. Every name is subject to him.
Far above all principality and power and might and dominion, and every name that is named, not only in this age but also in that which is to come. (Ephesians 1:21)
Therefore God also has highly exalted Him and given Him the name which is above every name, that at the name of Jesus every knee should bow, of those in heaven, and of those on earth, and of those under the earth, (Philippians 2:9, 10)
Since the church is the body and extension of Christ here on the Earth, Jesus entrusted it with the authority of His name. In a manner of speaking, he has given the church His power of attorney. The church operates on the earth in the name of Jesus (Mark 16:17; Luke 9:49; Acts 16:18). We must operate the work of deliverance in the name of Jesus, the power of the Holy Spirit and the Word of God.