Revelations 1 and 8:
I was in the Spirit on the Lord's day, and heard behind me a great voice, as of a trumpet...
His feet were like polished bronze refined in a furnace, and and his voice as the sound of many waters.
And when he had opened the seventh seal, there was silence in heaven about the space of half an hour.
And I saw the seven angels which stood before God; and to them were given seven trumpets.
Video/Audio - Adam Kendall