The book opens with a prologue (vv. 1-3): it is the revelation God gave to Jesus Christ to show his servants what must soon take place, which Christ made known through his angel to his servant John. A blessing is pronounced on the one who reads and on those who hear and keep what is written, because the time is near.
John then greets the seven churches in the province of Asia with grace and peace from God, from the seven spirits before his throne and from Jesus Christ, the faithful witness, the firstborn of the dead and the ruler of the kings of the earth (vv. 4-8). A short doxology praises the one who loves us, freed us from our sins by his blood and made us a kingdom of priests. It announces that he is coming with the clouds and that every eye will see him, and God himself declares that he is the Alpha and the Omega.
John explains that he writes as a brother and fellow sufferer in tribulation, on the island of Patmos, because of the word of God and the testimony of Jesus (vv. 9-11). On the Lord's Day, in the Spirit, he hears a voice like a trumpet telling him to write what he sees in a book and send it to seven cities.
Turning, John sees seven golden lampstands and, in the midst of them, one like a son of man in a long robe, with white hair, eyes like a flame of fire, a voice like the roar of many waters and a sharp sword coming from his mouth (vv. 12-16). John falls as though dead, but Christ lays his hand on him, tells him not to be afraid, declares that he died and lives forever, and explains that the seven stars are the angels of the churches and the seven lampstands are the churches (vv. 17-20).