The Book of Revelation, from its beginnings, had a difficult time getting into the biblical canon. Many scholars were sceptical about it. Martin Luther was not over enthused about it-and had a pastoral concern that it had the potential of doing more harm than good for parishioners.
Over the centuries, many interpreters of Revelation have had a field day with Revelation-twisting and distorting it to interpret current events rather than referring to the original audience and their context in the Roman empire. Many have also been preoccupied with interpreting Revelation to support their views on how the future is going to unfold.
New Testament scholar Dr. Gordon Fee offers some helpful insights into the Book of Revelation in the following video. Even though he is not a Lutheran, I find myself agreeing with much of what he has to say. Hope you enjoy the video.