Mark 5:13 in the King James Version
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.
Context
12 All the demons begged him, saying, “Send us into the pigs, that we may enter into them.”
13 At once Jesus gave them permission. The unclean spirits came out and entered into the pigs. The herd of about two thousand rushed down the steep bank into the sea, and they were drowned in the sea.
14 Those who fed the pigs fled, and told it in the city and in the country. The people came to see what it was that had happened.