Revelation 16:12-14

12And the sixth poured out his bowl on the great river Euphrates; and its water was dried up, that the way of the kings from the rising of the sun might be prepared.

13And I saw 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 frogs;

14for 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 1God the Almighty.