Revelation 16:5 in the King James Version
And I heard the angel of the waters say, Thou art righteous, O Lord, which art, and wast, and shalt be, because thou hast judged thus.
Context
4 The third poured out his bowl into the rivers and springs of water, and they became blood.
5 I heard the angel of the waters saying, “You are righteous, who are and who were, O Holy One, because you have judged these things.
6 For they poured out the blood of saints and prophets, and you have given them blood to drink. They deserve this.”