Matthew 8:28-34 says, "When he arrived at the other side in the region of the Gadarenes, two demon-possessed men coming from the tombs met him. They were so violent that no one could pass that way. 'What do you want with us, Son of God?' they shouted. 'Have you come here to torture us before the appointed time?' Some distance from them a large herd of pigs was feeding. The demons begged Jesus, 'If you drive us out, send us into the herd of pigs.' He said to them, 'Go!' So they came out and went into the pigs, and the whole herd rushed down the steep bank into the lake and died in the water. Those tending the pigs ran off, went into the town and reported all this, including what had happened to the demon-possessed men. Then the whole town went out to meet Jesus. And when they saw him, they pleaded with him to leave their region."
“Crying out with a loud voice, he said, ‘What have you to do with me, Jesus, Son of the Most High God? I adjure you by God, do not torment me.’ For he was saying to him, ‘Come out of the man, you unclean spirit!’ And Jesus asked him, ‘What is your name?’ He replied, ‘My name is Legion, for we are many’ ” (vv. 7–9).
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Mark 5:6-10