Revelation 16:12
And the sixth poured out his vial upon the great river, the Euphrates; and the water thereof was dried up, that the way of the kings who are from the rising of the sun might be prepared.
Revelation 9:14
saying to the sixth angel who had the trumpet, Loose the four angels who are bound at the great river Euphrates.
Revelation 7:2
And I saw another angel coming up from the rising of the sun, having the seal of the living God; and he cried with a loud voice to the four angels, to whom it was given to hurt the earth and the sea,
Revelation 11:14
The second woe is past; behold, the third woe cometh quickly.
Revelation 17:15
And he saith to me, The waters which thou sawest, where the harlot sitteth, are peoples, and multitudes, and nations, and tongues.