Revelation 16:13-16

13And I saw three unclean spirits that looked like frogs coming out of the mouths of the dragon, the beast, and the false prophet. 14These are demonic spirits that perform signs and go out to all the kings of the earth, to assemble them for battle on the great day of God the Almighty.

15“Behold, I am coming like a thief. Blessed is the one who remains awake and clothed, so that he will not go naked and let his shame be exposed.”

16And they assembled the kings in the place that in Hebrew is called Armageddon.