Nephi's exhortation to his brothers now reiterates both Nephi's source of information (the brass plates) and the essential corporal reality of these prophecies (that the things "written upon the plates of brass are true"). His moral is that the scriptures teach man to be obedient to the commandments of God. While he does not say it, the context of his sermon makes it clear that these are they who will be numbered among the righteous that need not fear the last days - those who have understood the commandments as they are presented in the scriptures, and have obeyed them. Nephi's plea is an open call to obey the Lord, and he refrains from personalizing that call into a call for specific repentance of Laman and Lemuel.