Simplify the following text for a Grade 11 native English-speaking person.
Original: It is also known as the Book of Revelation of St John the Divine or the Apocalypse of John , ( both in reference to its author ) or the Book of Revelation of Jesus Christ ( in reference to its opening line ) or simply Revelation , ( often dubbed `` Revelations '' in contrast to the singular in the original Koine ) or the Apocalypse .
Simplified: The Book of Revelation , which is sometimes called Revelation to John , Apocalypse of John , or Revelation of Jesus Christ is the last book of the New Testament in the Bible .