The book of Revelation is a highly symbolic and apocalyptic text in the New Testament of the Christian Bible. It is considered one of the most mysterious and difficult-to-interpret books of the Bible. The Apostle John wrote the book of Revelation while he was exiled to the island of Patmos towards the end of the first century A.D. To believers, the apocalyptic is a powerful reminder of God's sovereignty, justice, and mercy. It speaks of God's final judgment and ultimate triumph over evil.