Parallel
Revelation 9:13
Patriarchal Greek New Testament (1904) · Berean Standard Bible
Καὶ ὁ ἕκτος ἄγγελος ἐσάλπισε· καὶ ἤκουσα φωνὴν μίαν ἐκ τῶν τεσσάρων κεράτων τοῦ θυσιαστηρίου τοῦ χρυσοῦ τοῦ ἐνώπιον τοῦ Θεοῦ,
Then the sixth angel sounded his trumpet, and I heard a voice from the four horns of the golden altar before God