Parallel
Revelation 16:4
Patriarchal Greek New Testament (1904) · Berean Standard Bible
Καὶ ὁ τρίτος ἐξέχεε τὴν φιάλην αὐτοῦ εἰς τοὺς ποταμοὺς καὶ εἰς τὰς πηγὰς τῶν ὑδάτων· καὶ ἐγένετο αἷμα.
And the third angel poured out his bowl into the rivers and springs of water, and they turned to blood.