What
Luke 8:30
Jesus then asked him, "What is your name?" And he said, "Legion"; for many demons had entered him.
Luke 11:21-26
21
When a strong man, fully armed, guards his own palace, his goods are in peace;
22
but when one stronger than he assails him and overcomes him, he takes away his armor in which he trusted, and divides his spoil.
23
He who is not with me is against me, and he who does not gather with me scatters.
24
"When the unclean spirit has gone out of a man, he passes through waterless places seeking rest; and finding none he says, `I will return to my house from which I came.'
25
And when he comes he finds it swept and put in order.
26
Then he goes and brings seven other spirits more evil than himself, and they enter and dwell there; and the last state of that man becomes worse than the first."
Legion
Matthew 12:45
Then he goes and brings with him seven other spirits more evil than himself, and they enter and dwell there; and the last state of that man becomes worse than the first. So shall it be also with this evil generation."
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?