What did the Roman army use the trumpet for?
The Roman army used the trumpet to put out commands, much like the American cavalry used to. This military use of the trumpet for signaling orders illustrates how a trumpet can direct a group, which contrasts with the singular trump of God reserved for calling out the Body of Christ.
Les explains that the Roman army used the trumpet to put out commands, much like the American cavalry used to. He brings this up in the context of comparing the seven angelic trumpets in Revelation chapter 8 with the singular 'trump of God' in Paul's teaching on the rapture. In Revelation 8:2, seven angels standing before God are given seven trumpets, plural, not the trump of God, singular. Les emphasizes that these are angelic trumpets, blown by angels, and seven in number, whereas God has a trumpet reserved, made for just this event alone: the calling out of the Body of Christ. The Roman army illustration helps show how a trumpet can issue commands or signals, but the trump of God is unique and singular.