Quoting: Anonymous Coward 830448PERHAPS THERE IS A MESSAGE IN THIS MOVIELegion
is the name of the demon that Jesus casted out from a man in the Geresenes region (East of the Sea of Galilee). Legion was originally a term for several thousand Roman soldiers, which suggests that there may have been many demons inside this man. Jesus removed the demons out of the man and casted them into a herd of pigs that consequently ran off the edge of the cliff into the sea. This story is included in Luke to show that even demons are afraid of Jesus and must submit to him. Here is the story from Mark 5:6-14:
When he saw Jesus from a distance, he ran and fell on his knees in front of him. He shouted at the top of his voice, "What do you want with me, Jesus, Son of the Most High God? Swear to God that you won't torture me!" For Jesus had said to him, "Come out of this man, you evil spirit!"
Then Jesus asked him, "What is your name?"
"My name is Legion," he replied, "for we are many." And he begged Jesus again and again not to send them out of the area.
A large herd of pigs was feeding on the nearby hillside. The demons begged Jesus, "Send us among the pigs; allow us to go into them." He gave them permission, and the evil spirits came out and went into the pigs. The herd, about two thousand in number, rushed down the steep bank into the lake and were drowned.
Source(s): [link to www.biblegateway.com