One of the many witnesses of the truthfulness of the book of mormon is the chiasmus structures.
We are also told the following in Moses 6:7.
Old Testament Church - New Testament Church ( Great Apostasy ) Church of Jesus Christ of LDS - Zion
First shall be last, last shall be first.
We are also told as in the days of noah shall it be in the end. Joseph was known to say noah came before the flood, I (Joseph) came before the fire. Also see Matthew 24.
The ancient order of Enoch still needs to be restored or the ancient religion. If these types are true, than it brings up many more interesting questions. Perhaps this is why the Lord himself has commanded us to search Isaiah because his history is our history. Perhaps this is why Nephi included over a dozen chapters from Isaiah, telling us its expedient for us to know the words of Isaiah.
this is a new and an everlasting covenant, even that which was from the beginning. (D&C 22: 1.)The Book of Mormon history was placed at an end of an era, now it seems their history will be ours as the first of a new era.