Parallel
Revelation 8:6
Robinson-Pierpont Byzantine Textform · Berean Standard Bible
Καὶ οἱ ἑπτὰ ἄγγελοι οἱ ἔχοντες τὰς ἑπτὰ σάλπιγγας ἡτοίμασαν ἑαυτοὺς ἵνα σαλπίσωσιν.
And the seven angels with the seven trumpets prepared to sound them.