Revelation 16:12

8The fourth poured out his bowl on the sun, and it was given to him to scorch men with fire.

9People were scorched with great heat, and people blasphemed the name of God who has the power over these plagues. They didn’t repent and give him glory.

10The fifth poured out his bowl on the throne of the beast, and his kingdom was darkened. They gnawed their tongues because of the pain,

11and they blasphemed the God of heaven because of their pains and their sores. They still didn’t repent of their works.

12The sixth poured out his bowl on the great river, the Euphrates. Its water was dried up, that the way might be prepared for the kings that come from the sunrise.

13I saw coming 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, something like frogs;

14for they are spirits of demons, performing signs, which go out to the kings of the whole inhabited earth, to gather them together for the war of that great day of God the Almighty.

15“Behold, I come like a thief. Blessed is he who watches, and keeps his clothes, so that he doesn’t walk naked, and they see his shame.”

16He gathered them together into the place which is called in Hebrew, “Harmagedon”.