Revelation 16:4-7 - The Third Bowl
4 And the third poured out his bowl on the rivers and the springs of water, and they became blood. 5 And I heard the angel of the waters saying, "You are righteous, the one who is and the one who was, the Holy One, because you have judged these [things], 6 because they have poured out the blood of the saints and prophets, and you have given them blood to drink; they are deserving!"
7 And I heard the altar saying, "Yes, Lord God All-Powerful, true and righteous [are] your judgments."