Revelation 16:4-7

The third angel poured out his bowl on the rivers and the springs of water. The rivers and the springs of water became blood. Then I heard the angel of the waters say to God, “You are the one who is and who always was. You are the Holy One. You are right in these judgments you have made. The people have spilled the blood of your holy people and your prophets. Now you have given those people blood to drink. This is what they deserve.” And I heard the altar say