Luke 8:30-33
8:30 Jesus then asked him, “What is your name?” He said, “Legion,” because many demons had entered him.
8:31 And they began to beg him not to order them to depart into the abyss.
8:32 Now a large herd of pigs was feeding there on the hillside, and the demonic spirits begged Jesus to let them go into them. He gave them permission.
8:33 So the demons came out of the man and went into the pigs, and the herd of pigs rushed down the steep slope into the lake and drowned.