Mark 9:20
Then they [i.e., some people from the crowd] brought the sick boy to Jesus, and when the spirit saw Him, it immediately caused the boy to have convulsions and to fall to the ground and roll around, foaming at the mouth.
Mark 1:26
And the evil spirit caused the man to have a convulsion, then shouted with a loud voice and came out of him.
Mark 5:3-5
This man had been living in the graveyard and no one had been able to keep him tied up, not even with a chain.
Mark 9:18
Wherever it seizes him, it throws him down and he foams at the mouth, grinds his teeth and stiffens out. I spoke to your disciples, asking them to drive it out, but they were not able to."
Mark 9:26
The spirit shrieked and caused violent convulsions [in the boy], then came out of him. The boy appeared to be dead, so that most of the people were saying, "He is dead."
Luke 4:35
Then Jesus spoke sternly to the evil spirit [in the man], saying, "Be quiet, and come out of him." And when the evil spirit had thrown the man down in front of them, it came out of him, without causing any harm.
Luke 8:29
For Jesus was commanding the evil spirits to be driven out of the man, because they had been controlling him for a long time. The man was continually being guarded and his hands and feet were bound with chains. [Sometimes] he broke loose from the chains and was driven into the desert by the evil spirits.
Luke 9:42
And while the boy was approaching [Jesus], an evil spirit threw him to the ground in a convulsion. But Jesus spoke sternly to the evil spirit and [then] returned him to his father healed.
John 8:44
You belong to your father the devil, and you are [always] wanting to do what your father desires. He was a murderer from the [very] beginning [Note: This is probably a reference to Satan's influence on Adam, Eve and Cain in the Garden of Eden] and does not stand for the truth, because there is no truth in him. When he lies, he only speaks what is part of his nature, because he is a liar and the father of [all] liars.
1 Peter 5:8
Be sensible and alert; your enemy the devil is prowling around like a roaring [i.e., hungry] lion looking for someone to [kill and] eat.