'Unclean Spirit' in the Bible

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

And the unclean spirit, having torn him, and uttered a cry with a loud voice, came out of him.

And all were amazed, so that they questioned together among themselves, saying, What is this? what new doctrine is this? for 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 saying, Thou art the Son of God.

because they said, he has an unclean spirit.

And immediately on his going out of the ship there met him out of the tombs a man possessed by an unclean spirit,

For he said to him, Come forth, unclean spirit, out of the man.

And Jesus immediately allowed them. And the unclean spirits going out entered into the swine, and the herd rushed down the steep slope, into the sea (about two thousand), and were choked in the sea.

And he calls the twelve to him; and he began to send them out two and two, and gave to them power over the unclean spirits;

But immediately a woman, whose little daughter had an unclean spirit, having heard of him, came and fell at his feet

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