This is the first of an entire series of teachings on the Book of Revelation, the Apocalypse. In this lesson we will learn that this is not a book written to "the Church" and that replacement theology taught and promoted by many Christian clergy results in incorrectly dividing the Word of G-d, subtracting from the Word of G-d which will result in G-d removing those who do from the Book of Life (Rev. 22:19), or adding to the Word of G-d which will result in being affected by the plagues written in the book (Rev. 22:18).
Therefore, it is critical to understand G-d's Word and follow it as it is written as closely to the original as possible. The disposition of our souls depends upon it.