Revelation 16

13 And I saw from the mouth of the dragon, and from the mouth of the beast, and from the mouth of the false prophet, three unclean spirits like frogs. 14 For they are the spirits of devils working signs, and they go forth unto the kings of the whole earth, to gather them to battle against the great day of the Almighty God. 15 Behold, I come as a thief. Blessed is he that watcheth, and keepeth his garments, lest he walk naked, and they see his shame. 16 And he shall gather them together into a place, which in Hebrew is called Armagedon.