'Demon' in the Bible

As they went out, behold, a mute man who was demon possessed was brought to him.

When the demon was cast out, the mute man spoke. The multitudes marveled, saying, "Nothing like this has ever been seen in Israel!"

For John came neither eating nor drinking, and they say, 'He has a demon.'

Then one possessed by a demon, blind and mute, was brought to him and he healed him, so that the blind and mute man both spoke and saw.

Jesus rebuked him, the demon went out of him, and the boy was cured from that hour.