'Unclean Spirit' in the Bible

And there was in their synagogue a man with an unclean spirit; and he cried out,

And the unclean spirit threw him into convulsions, and crying with a loud voice, came out of him.

And they were all in astonishment, so that they questioned one another, saying, What is this? what is this new doctrine? that with authority he commands even the unclean spirits, and they obey him?

And the unclean spirits, when they beheld him, fell down before him, and cried out saying, Thou art the Son of God.

Because they said, he hath an unclean spirit.

And as he was going out of the vessel, immediately there met him a man with an unclean spirit,

(For he had said unto him, Come out, unclean spirit, from the man.)

And immediately Jesus permitted them. And the unclean spirits going forth, entered into the swine; and the herd rushed violently down a precipice into the sea (they were about two thousand), and were suffocated in the sea.

And called the twelve, and began to send them two and two, and gave them authority over unclean spirits.

For a woman hearing of him, whose daughter had an unclean spirit, came and fell at his feet.

Then Jesus, seeing that the multitude were running up to him, rebuked the unclean spirit, saying to him, Thou dumb and deaf spirit, I command thee, come out of him, and enter into him no more.