Immediately, there was a man with an "unclean sprit" in their midst. A.T. Robertson in "Word Pictures in the New Testament," says, "Unclean spirit is used as synonymous with demon (daimonion). It is the idea of estrangement from God (Zech. 13:2)."
The phrase, "What have you to do with us," is an idiomatic phrase implying displeasure, rejection or a desire to dissociate (see Jesus' rebuke of Mary in John 2:4). In the Septuagint (LXX, the Greek translation of the Hebrew Old Testament), this phrase appears in such passages as Judges 11:12, 2 Samuel 16:1, 1 Kings 17:18, 2 Kings 3:13 and Hosea 14:8.
Light exposes darkness for what it is; it reveals its presence, substance, and stains. Not only is God himself described in terms of "light" (John 9:5; 1 John 1:5; 1 Tim. 6:16; Jas. 1:17; cf. Rev. 21:23; 22:5); his Word is "light" (Psa. 119:105; Prov. 6:23; Eph. 5:13; 2 Pet. 1:19). Sinners often hide or rebel and/or run from "light" - the presence of God and his Word. Hughes says:
The light of Jesus' teaching was too much for the evil of a demonized life. Just as foul things scurry from the light when you lift a stone, evil spirits who love darkness recoil from the light. It is very possible to recognize Jesus for who he is and hate him all the more. This is what was happening here. This man wanted nothing to do with Christ. . . . I especially want us to see that this demonized man was completely under the sway of evil. His personality had been damaged to the point that the demonic spirit usurped the core of his self and even utilized his voice. Satan always tries to imitate God. Christ came to earth in human flesh and now dwells within us by the Spirit. Aping God, Satan fabricates incarnations through his spirits. This man was lost, a kennel for the malevolent spirits of fallen angels. He was literally "in an unclean spirit" (Mark 1:23, Greek). The moral nature of the unclean spirit fused with his [A.T. Robertson says, "The unclean spirit was in the man and the man in the unclean spirit"], so that he was coarse, filthy, and base within. So fully was he under the command of evil that he renounced all interest in Christ, saying, "You have no business with me yet! Go away!"
Moreover, his religious and cultural associations had done him no good. He was absolutely helpless. This does not mean he was as morally evil as he could be or as some who were not demonized (men and women are quite capable of the deepest evil all by themselves!), but that he was completely under Satan's power.
Demon's are not all-knowing (omniscient), but study so they can do harm (Satan had attempted to assassinate King Jesus - Matt. 2:16-18, etc.). Hendriksen states:
When the demon declares, "I know" he is not telling a lie. There are certain things that are known to the prince of evil and his servants. See James 2:19. Moreover, some of this knowledge causes them to tremble, to be frightened. They know that for them there is no salvation, only dreadful punishment. The demon is thinking of this very fact, as he realizes that he is at this moment being confronted with his Great Opponent, whom he, again correctly, calls "the Holy One of God."
This demon 'knew' Christ as "Jesus of Nazareth." Nazareth, literally "Nazarene," was located west of the Sea of Galilee. It was Jesus' hometown. Jesus is described by the demon as the "Holy One of God." We see this phraseology applied to Aaron (Psa. 106:16) and to Samson (Judges 13:7; 16:17) in the sense of "one specially consecrated to God." In the Gospels, this description of Jesus is unique to this incident (cf. Luke 4:34), but the apostles so describe him in Acts 2:27 and 13:35 (in quotations from Psa. 16:10) and in Acts 3:14. The demons quake in the presence of divine holiness.
As to demons, Hendriksen writes:
As is clear from Mark 1:32-34; 6:13; Luke 4:40, 41, it is not true that the New Testament writers, in common with all primitive people, ascribed all physical illnesses and abnormalities to the presence and operation of evil spirits. It is contrary to fact that demon-possession is simply another name for insanity or for dissociation. Fact is that demon-possession describes a condition in which a distinct and evil being (Mark: "an unclean spirit"; Luke 4:33, "the spirit of an unclean demon"), foreign to the person possessed, has taken control of that person.The theory according to which demon-possession has continued through the centuries and is present with us today is held by many. Origen (fl. A.D. 210-250) claimed that by calling on the name of Jesus and the name of martyrs (!) demons could be driven out. During the middle ages there were those who held that making the sign of the cross would be of help in expelling them. Many present-day advocates of this theory appeal to the often quoted work by H. W. White, Demonism Verified and Analyzed. W. P. Blatty's paperback The Exorcist ("a nightmare novel of demonic possession") has received high praise. And a certain newspaper reports a demon-expulsion resulting from five-hour directions by telephone!
That superstition plays its role in at least some of these claims is evident even on the surface. Besides, it is a question whether all those who believe in demon-possession as an actual present-day fact are scientifically equipped to draw the necessary distinction a. between certain abnormal mental conditions (for example "dissociation") and the invasion of the human personality by one or more of Satan's underlings; and b. between demonic influence and demon-possession. In the Roman Catholic Church before a priest is allowed to proceed with exorcism he has to make a thorough examination to see whether he is dealing with a real case of demon-possession, and even then he must receive authorization from his bishop before proceeding.
A man of high reputation, with thorough theological, medical, and psychiatric training, the late Dr. J. D. Mulder, in a series of articles on "Mental Disease and Demon Possession," wrote as follows, "For six years I have worked as medical missionary among the Navahos, a tribe of Indians still deeply steeped in fear of evil spirits, witchcraft, and related subjects, while the last ten years I was in daily contact with mentally disturbed of all types. Daily conversations with these patients, however, and careful delving into their inner thoughts have made me convinced that, whereas there might well be demoniacal influence, the picture of possession, as found in the New Testament, was always absent. I therefore fully agree with Prof. Schultze when he writes, 'I venture to suggest that demon possession was a phenomenon limited almost exclusively (if not entirely) to the period of special divine manifestations during the period in which the New Testament church was born.'"
An
unclean spirit recognized that Jesus had come to destroy the reign of Satan and challenged Jesus. Jesus quickly and easily overpowered him. This is the first of many times that Jesus defeated the hosts of Satan. Mark emphasized this theme more than the other gospel writers. (See 1:12, 13; 1:34, 39; 3:15, 22-30; 5:1-20, 6:13; 7:25-30; 8:33; 9:14-24; 38-42.) The enemies of the Messiah understood the threat to their rule. They tried to resist Jesus, but were unable to stand against him.