NET

13 Jesus gave them permission. So the unclean spirits came out and went into the pigs. Then the herd rushed down the steep slope into the lake, and about 2,000 were drowned in the lake.

Darby

13 And Jesus [immediately] allowed them. And the unclean spirits going out entered into the swine, and the herd rushed down the steep slope, into the sea (about two thousand), and were choked in the sea.

KJV

13 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.