Revelation 16:12
King James Version
“And the sixth angel poured out his vial upon the great river Euphrates; and the water thereof was dried up, that the way of the kings of the east might be prepared.”
Context
9And men were scorched with great heat, and blasphemed the name of God, which hath power over these plagues: and they repented not to give him glory.
10And the fifth angel poured out his vial upon the seat of the beast; and his kingdom was full of darkness; and they gnawed their tongues for pain,
11And blasphemed the God of heaven because of their pains and their sores, and repented not of their deeds.
12And the sixth angel poured out his vial upon the great river Euphrates; and the water thereof was dried up, that the way of the kings of the east might be prepared.
13And I saw three unclean spirits like frogs out of the mouth of the dragon, and out of the mouth of the beast, and out of the mouth of the false prophet.
14For they are the spirits of devils, working miracles, go forth unto the kings of the earth and of the whole world, to gather them to the battle of that great day of God Almighty.
15Behold, I come as a thief. Blessed he that watcheth, and keepeth his garments, lest he walk naked, and they see his shame.