The Book of Revelation, the last book of the New Testament of the Bible, is written probably about 95 during the reign of Domitian according to second-century CE theologian Irenaeus.

Also called the Apocalypse—the only piece of New Testament writing cast almost entirely in the apocalyptic mode—the title of Revelation comes from the first verse of the text, "the revelation of Jesus Christ...to his servant John."

The author of Revelation identifies himself several times as "John."

The author also states that he was on Patmos when he received his first vision.

As a result, the author of Revelation is sometimes referred to as John of Patmos.

Following a prologue, the first part of Revelation, which contains letters to the seven churches of Asia, cautions them against false teachers and offering encouragement.

These are followed by a series of visions, characteristic of the apocalyptic writing currently in fashion, replete with allegories, numbers and other symbols, and a strong eschatological message.

The author, undoubtedly speaking to the situation of his day, interprets the significance of the cross and resurrection for the future, declaring their meaning for time and history until the end and communicating a vision of God's final triumph over evil.