Revelation is no usual book. It is a sweeping analysis of history from the first advent of Christ to the second. Jesus had promised that the Spirit would teach His apostles “all things” (John 14:26). The Spirit had come and fulfilled the promise. Apostles had communicated the authoritative word. The task of revelation was finished. The Book of Revelation is the last apostolic word to the church. The Almighty Saviour, seated at God's right hand, opens His sovereign lips personally to declare that nothing is to be added to what has been recorded. Beware of meddling with Christ’s revelation.