The seven trumpets is the sound cycle of seven. The seven trumpets clearly announce God’s judgment.
Like the seven seals, the trumpets can be divided into two cycles. Like the first four seals, the first four trumpets are alike in nature. Similarly, the final three trumpets are alike as were the final three seals.
As the final three seals dealt with the Wrath of God, the final three trumpets will deal with an intensified expression of God’s Wrath (the three Woes).
Trumpets have a rich tradition in the Old Testament Scriptures. Predominantly, trumpets were used to;
(1) call God’s people together
(2) call to repentance
(3) announce judgment
(4) call to salvation
(5) call to the king’s coronation
(6) announce eschatological judgment.
The apostle Paul indicates that the trumpet of God will blow at the Parousia (Παρουσία , Arrival) of Christ (1 Thessalonians 4:16, 1 Corinthians 15:52). A teaching reflected in the teachings of Christ in the Olivet Discourse (Matthew 24:30-31).