In the final book of the New Testament, seven trumpets are sounded, one at a time, to set off apocalyptic events seen by John of Patmos in his vision. According to Revelation 8:1-2 the angels sound ...
The Four Horsemen of the Apocalypse appear in the Book of Revelation, where they are named as a punishment of God, but some believe they are an analogy of real-life events to come in the future.