Revelation 16:14

16:14 For they are the spirits of the demons performing signs who go out to the kings of the earth to bring them together for the battle that will take place on the great day of God, the All-Powerful.

Revelation 18:2

18:2 He shouted with a powerful voice:

“Fallen, fallen, is Babylon the great!

She has become a lair for demons,

a haunt for every unclean spirit,

a haunt for every unclean bird,

a haunt for every unclean and detested beast.