Revelation names its prophetic witness simply as John, writing from Patmos; the book never calls him John the apostle. Early Christians often made that identification, but others disputed it, and many scholars distinguish John of Patmos from the author of the Fourth Gospel. The work is usually dated near AD 95 under Domitian, though an earlier date in the 60s is also proposed. Addressed to seven real churches in Roman Asia, it is simultaneously a circular letter, prophecy, and apocalypse. Through symbols saturated with Genesis, Exodus, the prophets, and Daniel, John unmasks idolatrous empire, calls compromised and suffering churches to faithful worship and witness, and declares that the slain Lamb will judge evil and renew creation. As the Christian canon's finale, it gathers Scripture's story into the New Jerusalem, where God dwells with humanity.
John receives a vision of the glorified Christ walking among his churches, dictates seven letters that address each congregation with surgical precision, and calls the whole church to hear what the Spirit says — promising to the one who conquers a share in Christ's own victory.
John's visions carry him from the throne room of God through successive waves of cosmic judgment — seals, trumpets, bowls — through the war between the dragon and the Lamb, and through the fall of Babylon to the final victory of the rider on the white horse and the great white throne.
John's final vision is not escape from creation but its renewal — the holy city descending from heaven, God dwelling with his people at last, the tree of life restored and surpassed, death abolished, and the name of God written on his servants' faces as they reign with him forever.