Mosiah's natural concern for his sons was that they would be killed by the Lamanites. Here, the Lord blesses him according to his desires by not only promising his sons success but guaranteeing that they will not be destroyed. Mosiah could not have heard a more comforting message. Mosiah apparently told his sons of this promise because this was a source of strength for Ammon who later stood against those who had scattered the flocks of the king. These thieves did not fear Ammon, for they supposed that one of their men could slay him according to their pleasure, for they knew not that the Lord had promised Mosiah that he would deliver his sons out of their hands (Alma 17:35). See also Alma 19:22.