Demons & Pigs & Jesus

asking about the relationship between the demons and the pigs: Once Jesus has forced the demons to name themselves, they know defeat is immanent and they grovel. Apparently the most
the demons can hope for is to be left in their home territory rather than being
banished to the wilderness or to ruins. (These places were considered dangerous
to human beings because demons wandering and lurking in such places were
desperate for human hosts.) While demons would not normally want animal
hosts, Jesus was now master of their fate, so they bargained. It seems likely that
Jesus was able to accomplish a dual purpose. Banishing the demons permanently
and ridding the territory of an animal that since Moses was unclean to Jews.
When the demons enter the pigs, they immediately rush down a steep slope into
the lake. Animals have no resistance to the demons’ great urge to destroy life.
Mark writes nothing about the spirits leaving the pigs and therefore, we are to think that they remain in the water. Other ancient literature leads us to believe that demons considered this fate worse than having no host at all. --from the Mark Study Guide of Redeemer PCA in Manhattan