Exorcism of the Gerasene demoniac
The earliest account is from the Gospel of Mark, in which Jesus goes across the lake to the 'territory of the Gerasenes'. There, a man 'possessed by a demon' comes from the caves to meet him. People had tried to tie him down but he was too strong to be bound, even with chains for he would always break out of them; night and day among the tombs and in the hills he would cry out and cut himself with stones. Jesus approaches and calls the demon to come out of the man, who replies "What do you want with me, Jesus, Son of the Most High God? I beg you in the name of God never to torment me!" Jesus asks the demon for his name and is told "My name is Legion, for we are many." The demons beg Jesus not to send them away, but instead to send them into the pigs on a nearby hillside, which he does. The herd, about two thousand in number, rush down the steep bank into the lake and are drowned. The man is now seen, dressed and restored to sanity.
The Lucan gospel version  shortened this but retained most of the details. The author of the Matthew Gospel shortens the story more dramatically and turns the possessed man into two men; the location is also changed, from the territory of the Gerasenes to that of the Gadarenes. The story appears to be set close to the Sea of Galilee, but neither Gadara nor Gerasa is nearby; Gerasa is around 50km South East and Gadara 10km away, about a three hour walk. Origen speculated that there had been a town called 'Gergasa' on the shores of the Sea. In this version, Jesus does not ask for the demon's name – an important element of traditional exorcism practice.
- "A people who ... sit among the graves, and spend the night in the tombs;
- Who eat swine’s flesh, and the broth of abominable things is in their vessel".
Divergence in versions
Scholars have identified at least two notable divergences between the two accounts:
Number of locations
The ancient manuscripts report more than one location for the exorcism: Gadara (Gadarenes), Gerasa (Gerasenes), and Gergesenes.
In Matthew's gospel, "Gadarenes" appears in the Codex Vaticanus and "Gergesenes" in the Codex Washingtonianus. In Mark's account, the Codex Alexandrinus and the Codex Ephraemi Rescriptus record "Gadarenes," the Codex Vaticanus and the Codex Bezae use "Gerasenes," while other manuscripts testify to "Gergesenes." In Luke's account, "Gadarenes" appears in the Codex Alexandrinus, "Gerasenes" appears in Papyrus 75, and "Gergesenes" appears in the Codex Sinaiticus.
One explanation is that Matthew is attempting to correct the Mark account, substituting Gadara – a larger city, and closer to the Sea of Galilee – for Gerasa: details that would make more sense to his audience, who would be familiar with the region.
The differing geographical references to Gadara (and the Gadarenes) and Gerasa (and the Gerasenes) can also be explained in light of the social, economic, and political influence each city exerted over the region. The two ancient cities are comparable with a city with jurisdiction over a small region and another city with jurisdiction over a larger region. In this light, Mark identified the exorcism with the local center of power, Gadara, located about six miles southeast of Lake Galilee, whereas Matthew identified the event with the regional center of power, Gerasa, located further inland. Gerasa was often referred to as the country of the Gadarenes. The city of Gerasa (also known as Jerash) had been a major city-center since its founding by Alexander the Great, or one of his generals, in 331 BC. During the Roman period, it was one of the ten cities known as the Decapolis (literally, 'Ten Cities').
Number of demoniacs
The gospel accounts differ on the number of possessed men; while the Gospel of Luke version retains the one man in the Mark account, the Gospel of Matthew version of the story changes this to two men. This is characteristic of the writing style of the author of Matthew.
- The Life and Ministry of Jesus: The Gospels by Douglas Redford 2007 ISBN 0-7847-1900-4 page 168
- Mark 5:1–20
- Luke 8:26-39
- Matthew 8:28
- Donald Senior, What are They Saying about Matthew? (Paulist Press, 1996) page 84.
- M. Eugene Boring, Mark: A Commentary (Presbyterian Publishing Corp, 2006) pages 148–149.
- Craig S. Keener, A Commentary on the Gospel of Matthew (Wm. B. Eerdmans Publishing, 1999) page 282.
- Brown, Raymond E. et al., The Jerome Biblical Commentary, Englewood Cliffs, New Jersey: Prentice–Hall Inc., 1968, p. 32.
- McArthur, Dr. John (1987). Matthew 8-15 MacArthur New Testament Commentary. The Moody Bible Institute of Chicago. p. 41. ISBN 0-8024-0763-3.
- Daniel J. Harrington, The Gospel of Matthew (Liturgical Press, 1991) page 133.