Judges 6; Acts 10; Jeremiah 19; Mark 5
the healing of the Gerasene man who was demonized by a “legion” of demons (Mark 5:1–20) calls for explanations and reflection at many points. To pick up on six:
(1) The setting is Gentile territory on the east side of Lake Galilee, in the region of the Decapolis (5:20), the Ten Cities of largely Gentile constitution. That point is clear even from the herd of pigs, something that no self-respecting Jew would keep.
(2) The poor man described in these verses was subject to some sort of cyclical attack. At times he was docile enough to be chained, and then the attack would be so desperately strong that he could tear the chains apart and free himself. Banished from home and hearth, he lived among the tombs, where he cried out and lacerated himself, a man in the final throes of destruction by demonic powers (5:5). We should not assume that every case of what is today called insanity is the result of demonic activity; neither should we adopt the reductionism that reduces all demonism to chemical imbalances in the brain.
(3) The words addressed to Jesus (5:6–8), though on the lips of the man, are the product of the “evil spirit.” This spirit knows enough (a) to recognize who Jesus is, and (b) to live in horrible anticipation of the ultimate doom that awaits him.
(4) This exchange between Jesus and the “evil spirit” has two elements not found in any other exorcism in the canonical Gospels. First, the strange interplay between the singular and plural—“My name is Legion, … for we are many”—suggests an ambiguity in certain demonic activity. Moreover, as Jesus hints elsewhere, multiple invasion by unclean spirits is a “worse” condition to be scrupulously avoided (Matt. 12:45). Second, these demons do not wish to leave the area, and they do wish to be embodied (5:10, 12). Jesus accedes to both requests. Presumably this reflects in part the fact that the final hour for their banishment has not yet arrived.
(5) While it is essential to reflect on Jesus’ absolute mastery over these evil spirits, one must add that he does not call forth these spirits one by one, solicit their names, enter into conversation with them, or a host of other things commonly practiced by some who are given to “deliverance ministries.”
(6) The responses to this deliverance are striking. The delivered man wants to follow Jesus, and is commissioned to bear witness, in his Gentile world, to how much the Lord has done for him and how he has shown him mercy (5:18–20). The people of the region beg Jesus to leave (5:17): they prefer pigs to people, their financial security to the transformation of a life.
 Carson, D. A. (1998). For the love of God: a daily companion for discovering the riches of God’s Word. (Vol. 2, p. 25). Wheaton, IL: Crossway Books.