11:23 And in the seventy and ninth year there began to be much strife. But it came to pass that Nephi and Lehi, and many of their brethren who knew concerning the true points of doctrine, having many revelations daily, therefore they did preach unto the people, insomuch that they did put an end to their strife in that same year.

 11:24 And it came to pass that in the eightieth year of the reign of the judges over the people of Nephi, there were a certain number of the dissenters from the people of Nephi, who had some years before gone over unto the Lamanites, and taken upon themselves the name of Lamanites, and also a certain number who were real descendants of the Lamanites, being stirred up to anger by them, or by those dissenters, therefore they commenced a war with their brethren.