Luke 8:30-33

Jesus asked him, “What is your name?” He answered, “Legion,” because many demons were in him. The demons begged Jesus not to send them into eternal darkness. A large herd of pigs was feeding on a hill, and the demons begged Jesus to allow them to go into the pigs. So Jesus allowed them to do this. When the demons came out of the man, they went into the pigs, and the herd ran down the hill into the lake and was drowned.