Helaman closes with a blessing on Moroni and the cause in general. His final statement is to identify himself once again as the author of this letter. It is probable that there were no such thing as signatures by which one might recognize the writer of a letter, and so what we have is Helaman’s declaration that is meant to give his authority. Notice that he gives the formal “Helaman, the son of Alma.” Doubtless Moroni is well aware of who Helaman’s father was. This statement is not here to give Moroni information he does not know, but rather to formally seal this letter with the authority of Helaman, the chief priest.
Textual: With the end of this inserted letter, Mormon ends his chapter.