Revelation 16

13 and I saw [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, three unclean spirits like frogs— 14 for they are spirits of demons, doing signs—which go forth to the kings of the earth, and of the whole world, to bring them together to the battle of that great day of God the Almighty. 15 ("Behold, I come as a thief; blessed [is] he who is watching, and keeping his garments, that he may not walk naked, and they may see his unseemliness.") 16 And they brought them together to the place that is called in Hebrew Armageddon.