But behold, a hundredth part of the proceedings of this people, yea, the account of the Lamanites and of the Nephites, and their wars, and contentions, and dissensions, and their preaching, and their prophecies, and their shipping and their building of ships, and their building of temples, and of synagogues and their sanctuaries, and their righteousness, and their wickedness, and their murders, and their robbings, and their plundering, and all manner of abominations and whoredoms, cannot be contained in this work. But behold, there are many books and many records of every kind, and they have been kept chiefly by the Nephites. And they have been handed down from one generation to another by the Nephites, even until they have fallen into transgression and have been murdered, plundered, and hunted, and driven forth, and slain, and scattered upon the face of the earth, and mixed with the Lamanites until they are no more called the Nephites, becoming wicked, and wild, and ferocious, yea, even becoming Lamanites (Helaman 3:14-16).