Matthew 8:30-32

30Now a good way off from them there was a herd of many swine feeding.

31So the demons begged Him, saying, “If You cast us out, permit us to go away into the herd of swine.”

32And He said to them, “Go.” So when they had come out, they went into the herd of swine. And suddenly the whole herd of swine ran violently down the steep place into the sea, and perished in the water.