'Unclean' in the Bible
Just then there was a man in their synagogue with an unclean spirit; and he cried out,
Throwing him into convulsions, the unclean spirit cried out with a loud voice and came out of him.
They were all amazed, so that they debated among themselves, 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, they would fall down before Him and shout, “You are the Son of God!”
When He got out of the boat, immediately a man from the tombs with an unclean spirit met Him,
For He had been saying to him, “Come out of the man, you unclean spirit!”
Jesus gave them permission. And coming out, the unclean spirits entered the swine; and the herd rushed down the steep bank into the sea, about two thousand of them; and they were drowned in the sea.
And He *summoned the twelve and began to send them out in pairs, and gave them authority over the unclean spirits;
But after hearing of Him, a woman whose little daughter had an unclean spirit immediately came and fell at His feet.
When Jesus saw that a crowd was rapidly gathering, He rebuked the unclean spirit, saying to it, “You deaf and mute spirit, I command you, come out of him and do not enter him again.”