Revelation 16:4-7 - The Third Bowl
4 And, the third, poured out his bowl into the rivers, and the fountains of waters; and they became blood. 5 And I heard the messenger of the waters, saying - Righteous, art thou Who art, and Who wast, Who art full of lovingkindness, - in that, these things, thou hast adjudged; 6 Because, blood of saints and prophets, poured they out, and, blood, unto them, hast thou given to drink: Worthy, they are!
7 And I heard the altar, saying - Yea! Lord, God, the Almighty: True and righteous, are thy judgments!