Revelation 16:12-16 - The Sixth Bowl
12 And the sixth poured his bowl upon the great river, the River Euphrates, and its water was dried up so as to make ready the way for the kings that come from the sunrising. 13 And I saw three unclean spirits, like frogs, coming out of the dragon's mouth, and the beast's mouth, and the false prophet's mouth. 14 For these are the spirits of demons performing miracles, who go forth to the kings of the habitable earth, to gather them together for the battle of the great Day of God, the Almighty.
15 Lo, I am coming like a thief. Blessed is the who is on the watch and guarding his clothing, so that he may not walk naked, and they gaze on his shame.
16 And the spirits gathered the kings together at the place called in Hebrew, Armageddon.