'Demon' in the Bible

There was a man in the synagogue who was possessed by the spirit of an unclean demon; and he cried out with a loud and terrible voice,

But Jesus rebuked him, saying, “Be silent (muzzled, gagged) and come out of him!” And when the demon had thrown the man down among them, he came out of him without injuring him in any way.

For John the Baptist has come neither eating bread nor drinking wine, and you say, ‘He has a demon!’

Now He was [already] commanding the unclean spirit to come out of the man. For it had seized him [violently] many times; and he was kept under guard and bound with chains and shackles, but he would break the bonds and be driven by the demon into the desert.

Even while the boy was coming, the demon slammed him down and threw him into a [violent] convulsion. But Jesus rebuked the unclean spirit, and healed the boy and gave him back to his father.

And [at another time] Jesus was casting out a demon, and it was [controlling a man so as to make him] mute; when the demon had gone out, the mute man spoke. And the crowds were awed.

And there was a woman who for eighteen years had had an illness caused by a spirit (demon). She was bent double, and could not straighten up at all.