Luke 8:30-36

Then Jesus asked him, “What is your name?” And he answered, “Legion”; because many demons had entered him. They continually begged Him not to command them to go into the abyss. [Rev 9:1] Now a large herd of pigs was feeding there on the mountain. The demons begged Jesus to allow them to enter the pigs, and He gave them permission. Then the demons came out of the man and entered the pigs; and the herd rushed down the steep bank into the lake and was drowned. When the herdsmen saw what had happened, they ran away and told it in the city and out in the country. And people came out to see what had happened. They came to Jesus, and found the man from whom the demons had gone out, sitting at Jesus’ feet, clothed and in his right mind (mentally healthy); and they were frightened. Those who had seen it told them how the man who had been demon-possessed had been healed.