Revelation 16:12-16

The sixth angel emptied his bowl on the great river Euphrates. Its water was dried up to prepare the way for the kings of the East. I saw three unclean spirits like frogs come from the mouth of the dragon, from the mouth of the beast, and from the mouth of the false prophet. These were demonic spirits who performed signs. They went out to the kings of the whole world to assemble them for the battle on the great day of God the almighty. (“Behold, I am coming like a thief.” Blessed is the one who watches and keeps his clothes ready, so that he may not go naked and people see him exposed.) They then assembled the kings in the place that is named Armageddon in Hebrew.