'Demons' in the Bible

And the rest of men who were not killed with these plagues repented not of the works of their hands, that they should not worship demons, and the golden and silver and brazen and stone and wooden idols, which can neither see nor hear nor walk.

for they are the spirits of demons, doing signs; which go out to the kings of the whole habitable world to gather them together to the war of that great day of God the Almighty.

And he cried with a strong voice, saying, Great Babylon has fallen, has fallen, and has become the habitation of demons, and a hold of every unclean spirit, and a hold of every unclean and hated bird;