Lucas 8

27 Well when He stepped out on the land, a certain man of that town met Him, who had had demons for a long time—he wore no clothes, nor did he live in a house, but among the tombs. 28 When he saw Jesus he gave a yell, fell down before Him, and with a loud voice he said: "What do you want with me, Jesus, Son of the Most High God?*The disciples may not have known who Jesus was, but the demons did! I beg you, don’t torment me!" 29 because He had commanded the unclean spirit to get out of the man (it had seized him many times—he would be bound with chains and shackles, being kept under guard; then bursting the bonds he would be driven by the demon into deserted places). 30 Then Jesus asked him, "What is your name?"*I assume that Jesus knew the demon’s name without asking, so why did He ask? I would say that He wanted it to be part of the Record, to teach us that demon infestation can and does occur. And he said, "Legion" (because many demons had gone into him). 31 And he*The boss demon does most of the talking, representing his cohort. kept imploring Him that He would not order them to go away into the Abyss.*The Text has ‘the Abyss’, presumably the same one mentioned in Revelation 20:3. The demons knew something that most of us do not.

32 Now a herd of many pigs was feeding there on the hillside; and they started begging Him that He would allow them to go into those; so He gave them permission. 33 Then the demons exited the man and entered the pigs—and the herd rushed down the steep bank into the lake and was drowned!*I very much doubt that the demons engineered that reaction; it would have been counterproductive, leaving them without a ‘home’. Animals often show more good sense than do humans, and they may have preferred death to demons. (And I suppose it is possible that Jesus Himself commanded the action, since pork was proscribed for God’s people.)

34 Well when the herders saw what had happened they ran away and reported it in the town and in the countryside. 35 So they went out to see what had happened, and came to Jesus; they found the man from whom the demons had gone out sitting at Jesus' feet, clothed and in his right mind; and they were afraid.*With good reason; a supernatural power was at work, obviously.