Revelation 16:12
"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."
Cross References (ranked by relevance)
Saying to the sixth angel which had the trumpet, Loose the four angels which are bound in the great river Euphrates.
Therefore thus saith the LORD; Behold, I will plead thy cause, and take vengeance for thee; and I will dry up her sea, and make her springs dry.
That saith to the deep, Be dry, and I will dry up thy rivers:
I have raised up one from the north, and he shall come: from the rising of the sun shall he call upon my name: and he shall come upon princes as upon morter, and as the potter treadeth clay.
And the LORD shall utterly destroy the tongue of the Egyptian sea; and with his mighty wind shall he shake his hand over the river, and shall smite it in the seven streams, and make men go over dryshod.
I will make waste mountains and hills, and dry up all their herbs; and I will make the rivers islands, and I will dry up the pools.
And he saith unto me, The waters which thou sawest, where the whore sitteth, are peoples, and multitudes, and nations, and tongues.
And I saw another angel ascending from the east, 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,
Calling a ravenous bird from the east, the man that executeth my counsel from a far country: yea, I have spoken it, I will also bring it to pass; I have purposed it, I will also do it.
The second woe is past; and, behold, the third woe cometh quickly.
Now therefore, behold, the Lord bringeth up upon them the waters of the river, strong and many, even the king of Assyria, and all his glory: and he shall come up over all his channels, and go over all his banks: