Revelation 8:2
And I saw the seven angels which stood before God; and seven trumpets were given to them.
Revelation 8:6-1
And the seven angels who had the seven trumpets, prepared themselves to sound.
Revelation 9:14
saying to the sixth angel, who had the trumpet, Loose the four angels who are bound by the great river Euphrates.
Revelation 10:7
But in the days of the voice of the seventh angel; when he shall begin to sound, then the secret of God, as he had revealed its glad tidings to his servants the prophets, should be fulfilled.
Revelation 11:15-18
And the seventh angel sounded, and there were great voices in heaven, saying, The kingdoms of the world are become the kingdoms of our Lord, and of his Christ; and he shall reign for ever and ever.