'Evil Spirit' in the Bible

so that even from his skin there were brought handkerchiefs and aprons unto the diseased, and their disorders were chased from them, and the evil spirits came out of them.

Then certain of the Jews, who went about as exorcists, attempted to make mention of the name of the Lord Jesus over those who had evil spirits, saying, We adjure you by Jesus whom Paul preacheth.

Then the evil spirit replied, Jesus I know, and Paul I know; but who are ye?

And the man sprang upon them, in whom was the evil spirit, and getting the mastery over them, prevailed against them, so that they fled out of that house naked and wounded.