Mark 5:9-13

And he asked him, What is thy name? And he answered, saying, My name is Legion: for we are many.

And he besought him much that he would not send them away out of the country.

Now there was there nigh unto the mountains a great herd of swine feeding.

And all the devils besought him, saying, Send us into the swine, that we may enter into them.

And forthwith Jesus gave them leave. And the unclean spirits went out, and entered into the swine: and the herd ran violently down a steep place into the sea, (they were about two thousand;) and were choked in the sea.