As has been long observed, the book of Revelation is not often taught from the pulpits of Christianity by the very men whom God has raised up for the purpose of serving as balanced, in-depth guides to the truths therein.
There is a widespread prejudice against the study of the Apocalypse. Though it is the great prophetic book of the New Testament, the last of all the writings of Inspiration, a special message from the ascended Saviour to His Churches on earth, and pressed upon every ones attention with uncommon urgency, there are religious guides, sworn to teach the whole counsel of God, who make a merit of not understanding it, and of not wishing to occupy themselves with it.1Even the greatest commentator of the Reformation, John Calvin, avoided writing a commentary on Revelation.2
One side-effect of this avoidance of the book of Revelation by pastors tasked with edifying the saints is that others who are less qualified step in and attempt to do the job in their place. Due to its seemingly mysterious nature and wealth of symbols, the curiosity of believers is aroused. If they are unable to find solid teaching about the book from their local church pulpit, they naturally look elsewhere. Unfortunately, most of the alternative sources are lacking in intimacy with our Lord, biblical understanding, or are motivated to gain followers and notoriety by tickling the ears of the saints, as Paul warned Timothy (2Ti. 2Ti. 4:3-4).
1 J. A. Seiss, The Apocalypse: Lectures on the Book of Revelation (Grand Rapids, MI: Zondervan Publishing House, 1966), v.
2 John Calvin, the greatest commentator of the Reformation, who wrote commentaries on the other books, did not attempt to write a commentary on Revelation.John MacArthur, Revelation 1-11 : The MacArthur New Testament Commentary (Chicago, IL: Moody Press, 1999), 1.