Mark 5:9

Then Jesus asked him, "What is your name?" And he replied, "My name is Legion, for we are many."

Matthew 26:53

Do you think that I cannot appeal to my Father, and he will at once send me more than twelve legions of angels?

Luke 8:30

Jesus asked him, "What is your name?" And he said, "Legion"; because many demons had entered him.

Then he goes and takes with him seven other spirits more wicked than himself, and they enter and dwell there; and the last state of that man is worse than the first. So shall it also be with this wicked generation."

Mark 5:15

And they came to Jesus, and saw the man who had been possessed sitting there, clothed and in his right mind, the man who had had the legion; and they were afraid.