Revelation 16:11-13 World English Bible (WEB)
11 and they blasphemed the God of heaven because of their pains and their sores. They still didn’t repent of their works.
12 The 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. 13 I 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;