The Book of Revelation (also called the Apocalypse of John, Revelation to John or Revelation from Jesus Christ) is the final book of the New Testament and consequently is also the final book of the Christian Bible. Its title is derived from the first word of the Koine Greek text: apokalypsis, meaning “unveiling” or “revelation.” The Book of Revelation is the only apocalyptic book in the New Testament canon. Thus, it occupies a central place in Christian eschatology.
The author names himself as “John” in the text, but his precise identity remains a point of academic debate.
The following definitions and meanings of words are taken from ‘Strong’s Bible Concordance’ and are associated with the ‘Book of Revelation’ Chapter 21 verse 8.