'Unveiling' in the Bible

Now to Him who is able to establish and strengthen you [in the faith] according to my gospel and the preaching of Jesus Christ, according to the revelation of the mystery [of the plan of salvation] which has been kept secret for long ages past,

This is the revelation of Jesus Christ [His unveiling of the divine mysteries], which God [the Father] gave to Him to show to His bond-servants (believers) the things which must soon take place [in their entirety]; and He sent and communicated it by His angel (divine messenger) to His bond-servant John,