What does the Bible say about the gospel trumpet?

The gospel trumpet represents the word of God and serves as a divine summons for those who are perishing to gather and worship the Lord. In Isaiah 27:13, the great trumpet is sounded as a foreshadowing of the deliverance through Christ, where the gospel extends not just to Israel, but to all nations. Calvin remarked that this trumpet symbolizes the voice of God, which we see in the New Testament as the sound that gathers the elect from around the world. The gospel trumpet thus stands as a powerful declaration of salvation that calls out to the lost and draws them to Christ.