The Anchor Yale Bible Dictionary
Apocalypses and Apocalypticism
APOCALYPSES AND APOCALYPTICISM. This entry consists of five separate articles. The first two discuss the genre of “apocalypse” and provide an introductory overview to the subject. The third covers “apocalyptic” literature in Mesopotamia and the question of its connection to biblical apocalyptic writings.
A Dictionary of Christian Biography, Literature, Sects and Doctrines, Volumes I–IV
APOCALYPSES (Apocryphal). Abundant as is the literature of apocryphal Gospels and Acts produced in the first centuries of the Christian Church, the more meagre appears that of apocryphal Apocalypses current under Apostolic names, and derived from the same periods of ecclesiastical history. Apocalyptic
The Zondervan Encyclopedia of the Bible, Volume 1, A–C
Apocalypses, Apocryphal
apocalypses, apocryphal. Purported revelations given to or by well-known biblical characters, but excluded from the canon, are quite numerous. Such extracanonical OT apocalypses include 1–3 Enoch, 2–3 Baruch, 4 Ezra (= 2 Esdras), Apocalypse of Adam, Apocalypse of Abraham, Ascension of Isaiah, Assumption
Encyclopedia of Ancient Christianity
APOCALYPSES (apocryphal). Christian apocalyptic literature derived from Jewish apocalyptic literature, which played a very important role in late Jewish culture. Apocalyptic was also born out of the expectation of the Lord’s imminent return in the first centuries and influenced people’s way of thinking
The Dictionary of the Bible and Ancient Media
Apocalypses, Early Christian
Apocalypses, early Christian Early Christian apocalypses are those documents written in the apocalyptic genre by Christian authors in the first four centuries CE. Understood as a literary genre, apocalypse—broadly speaking—refers to works containing a revelation (which is what the Greek apocalypsis means)
Apocalypses, Early Jewish
Apocalypses, Early Jewish An apocalypse, from the Greek apocalypsis, ‘unveiling’, is a revelation or uncovering of secrets. As a literary genre, apocalyptic texts purport to reveal or disclose divine secrets, including information regarding forces of nature and other more esoteric realities that would
Key passages
Re 1:1

The revelation of Jesus Christ, which God gave him to show to his slaves the things which must take place in a short time, and communicated it by sending it through his angel to his slave John,