This letter that was written by the apostle John is also called The Revelation of St. John, due to the first words of the book, but it speaks not of John as the one who unveiled some vision from God but one that is revealed by Jesus the Messiah to John. Also, some have called the book "Revelations," referring to disjointed revelations, but this misunderstands the unity of the one revelation from Jesus. Since it is a "revelation," the book is part of a genre called apocalyptic (the word revelation being from the Greek word apocalypse or unveiling). The text continues that those things revealed to John "must happen soon," an allusion to Daniel 2:28, 29, 45, and speaks of events occurring in rapid succession in the "last days."