'Demon possessed' in the Bible

When it was evening, after sunset, they brought to him all who were sick and demon-possessed.

They came to Jesus and saw the demon-possessed man sitting there, clothed and in his right mind -- the one who had the "Legion" -- and they were afraid.

Those who had seen what had happened to the demon-possessed man reported it, and they also told about the pigs.

As he was getting into the boat the man who had been demon-possessed asked if he could go with him.