Parallel
Revelation 9:14
Robinson-Pierpont Byzantine Textform · Berean Standard Bible
λέγουσαν τῷ ἕκτῳ ἀγγέλῳ ὁ ἔχων τὴν σάλπιγγα, Λῦσον τοὺς τέσσαρας ἀγγέλους τοὺς δεδεμένους ἐπὶ τῷ ποταμῷ τῷ μεγάλῳ Εὐφράτῃ.
saying to the sixth angel with the trumpet, “Release the four angels who are bound at the great river Euphrates.”