Revelation, a prophetic apocalyptic letter, is a profoundly Christian text. Father Harrington is concerned to open up Revelation and to convey its Christian message. After an introduction he provides a new translation of each section of the writing, followed by notes which deal with mattes of text and content that require clarification. He then treats the passage as a whole by discussing its literary character, its theological significance, and its relevance to our situation. Bibliographies direct the reader to important modern studies. Father Harrington (1927-2025), brings his scholarship to the Book of Revelation and conveys its Christian message. He puts the work in its historical and social setting a first-century c.e. province of the Roman Empire and explores its social and religious background and its literary character. Through Father Harrington we hear clearly the challenge of John, the prophet, to the Churches of his time and to ours not to compromise the gospel message.