'Unclean Spirit' in the Bible

Just then a man with an unclean spirit was in their synagogue. He cried out,

And the unclean spirit convulsed him, shouted with a loud voice, and came out of him.

Then they were all amazed, so they began to argue with one another, saying, “What is this? A new teaching with authority! He commands even the unclean spirits, and they obey Him.”

Whenever the unclean spirits saw Him, those possessed fell down before Him and cried out, “You are the Son of God!”

because they were saying, “He has an unclean spirit.”

As soon as He got out of the boat, a man with an unclean spirit came out of the tombs and met Him.

For He had told him, “Come out of the man, you unclean spirit!”

And He gave them permission. Then the unclean spirits came out and entered the pigs, and the herd of about 2,000 rushed down the steep bank into the sea and drowned there.

He summoned the Twelve and began to send them out in pairs and gave them authority over unclean spirits.

Instead, immediately after hearing about Him, a woman whose little daughter had an unclean spirit came and fell at His feet.

When Jesus saw that a crowd was rapidly coming together, He rebuked the unclean spirit, saying to it, “You mute and deaf spirit, I command you: come out of him and never enter him again!”