Bible Prophecy

https://www.biblestudy.org/prophecy/main.html

What is the key to understanding the prophetic book of Revelation?
Some believe the Bible's last prophetic book is closed, meaning no one as yet can understand it. We find, however, a key verse which refutes this claim which states, "The revelation of Jesus Christ, which God gave to Him, to show to His servants the things that are ordained to come to pass shortly" (Revelation 1:1, HBFV).

The Father gave to Jesus something to reveal, a key not to hide. In the book's last chapter God reiterates that his words were given to reveal and not to be sealed (Revelation 22:10)!

The key to understanding is the mysterious book of Revelation is comprehending its story flow. The theme of the book is the events leading up to the Jesus' second coming. The book's second and third chapters contain vital warnings to the seven churches that existed in Asia Minor in the first century A.D. Many believe these churches represent Christians from the time of Christ to the end time, or symbolize groups of believers that will all exist before He returns.