ETYM French révélation, Latin revelatio. Related to Reveal.
An enlightening or astonishing disclosure.
The unveiling of something hidden, so that its true nature may be seen. In the Bible revelation means God showing himself to be active in human history and as the creator, and it can come through actions or the words of prophets. In Christian belief Jesus Christ is the ultimate revelation of God. In Islam God's most complete and final revelation was that given through Mohammed and recorded as the Koran.

Revelations of Saint John the Divine in the New Testament; Also called: Apocalypse.
Last book of the New Testament, traditionally attributed to the author of the Gospel of St John but now generally held to be the work of another writer. It describes a vision of the end of the world, of the Last Judgment, and of a new heaven and earth ruled by God from Jerusalem.