'Unclean' in the Bible

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 like frogs.

And the woman was dressed in purple and scarlet and adorned with gold and precious stones and pearls, holding a golden cup in her hand full of detestable things and the unclean things of her sexual immorality.

And he cried out with a powerful voice, saying, "Fallen, fallen [is] Babylon the great, and it has become a dwelling place of demons and a haunt of every unclean spirit and a haunt of every unclean bird and a haunt of every unclean and detested animal.

And every unclean thing and one who practices detestable things and falsehood will never enter into it, except those who are written in the book of life of the Lamb.