1:1
The word revelation (Greek apokalupsis) introduces the book's visionary style as apocalyptic writing (see Revelation Book Introduction, “Apocalyptic Writing”). God shares his message through mysterious symbols, numbers, and word pictures.
of Jesus Christ: He is both the source and the main subject of the book.
what must soon come to pass: Compare Revelation 3:11; 22:6–7; Luke 18:8; Romans 16:20.