Revelation 16:3-6

Then the second angel poured his bowl into the sea, and it became like the blood of the dead—every living thing in the sea died. The third angel poured his bowl into the rivers and springs of water, and they became blood. And I heard the angel of the waters say: “O holy One, who are and were, you are righteous, for you have judged these things, because they shed the blood of your saints and prophets. They got what they deserved, for you gave them blood to drink!”