Revelation 16:4-7 - The Third Bowl
4 And the third angel poured out his vase upon the rivers and upon the fountains of waters; and they became blood. 5 And I heard the angel of the waters saying, Righteous art thou, O Lord, who art, and who wast, even the holy one, because thou hast judged these things. 6 For they have shed the blood of saints and prophets, and thou hast given them blood to drink; for they are worthy.
7 And I heard another angel from the altar saying, Yea, Lord God Almighty, true and just are thy judgments.