# Commentary on Revelation Word Study – Revelation > *Revelation* (1:1) ^4kfsbx - *Apokalypsis* (Gk.): a noun meaning \"revelation\" or \"unveiling\". In the Bible, the term always refers to a disclosure of something that was previously unknown, whether it be secrets (Sir 22:22), works (Sir 11:27), the knowledge of God (Eph 1:17), or the plan of salvation (Eph 3:3). Mysteries can be made known in the present, such as Christ\'s glory and Lordship (Gal 1:12), or await disclosure until the future, when God will judge the world (Rom 2:5) and bestow glory on his children (Rom 8:19). The word *apokalypsis* serves as a title for the Book of Revelation, sometimes called the Apocalypse on the basis of this Greek term (Rev 1:1). The title is well chosen inasmuch as Revelation removes the veil from God\'s plan for the future, drawing back the curtain that hides Christ\'s glory, kingship, and control over history from the naked eye (Rev 4-5) (CCC 50). --- > Scott Hahn and Curtis Mitch, *The Ignatius Catholic Study Bible: New Testament*, Revised Standard Version, Second Catholic Edition (San Francisco: Ignatius Press, 2010).