Revelation 16:12-14

12. And the sixth angel poured out his vial upon the great river Euphrates; and the water thereof was dried up, that the way of the kings of the east might be prepared. 13. And I saw three unclean spirits like frogs [come] out of the mouth of the dragon, and out of the mouth of the beast, and out of the mouth of the false prophet. 14. For they are the spirits of devils, working miracles, [which] go forth unto the kings of the earth and of the whole world, to gather them to the battle of that great day of God Almighty.

Revelation 16:12-14 — KJV