Mark 5:9-13

Then He asked him, “What is your name?” And he answered, saying, “My name is Legion; for we are many.” Also he begged Him earnestly that He would not send them out of the country. Now a large herd of swine was feeding there near the mountains. So all the demons begged Him, saying, “Send us to the swine, that we may enter them.” And at once Jesus gave them permission. Then the unclean spirits went out and entered the swine (there were about two thousand); and the herd ran violently down the steep place into the sea, and drowned in the sea.