'Unclean Spirits' in the Bible

And he called unto him his twelve disciples, and gave them authority over unclean spirits, to cast them out, and to heal all manner of disease and all manner of sickness.

And they were all amazed, insomuch that they questioned among themselves, saying, What is this? a new teaching! with authority he commandeth even the unclean spirits, and they obey him.

And the unclean spirits, whensoever they beheld him, fell down before him, and cried, saying, Thou art the Son of God.

And he gave them leave. And the unclean spirits came out, and entered into the swine: and the herd rushed down the steep into the sea, in number about two thousand; and they were drowned in the sea.

And he calleth unto him the twelve, and began to send them forth by two and two; and he gave them authority over the unclean spirits;

And amazement came upon all, and they spake together, one with another, saying, What is this word? for with authority and power he commandeth the unclean spirits, and they come out.

and they that were troubled with unclean spirits were healed.

And there also came together the multitudes from the cities round about Jerusalem, bring sick folk, and them that were vexed with unclean spirits: and they were healed every one.

For from many of those that had unclean spirits, they came out, crying with a loud voice: and many that were palsied, and that were lame, were healed.

And I saw coming out of the mouth of the dragon, and out of the mouth of the beast, and out of the mouth of the false prophet, three unclean spirits, as it were frogs: