Nephi’s brothers, unwilling to listen to what he has told them, complained that he had "declared unto us hard things, more than we are able to bear" (1 Nephi 16:1). In essence, Nephi said back to them, "Well, the guilty take the truth to be hard, so it is not surprising that you think these are hard to bear." It cut them to the very center. But then Nephi got more positive. Obviously, he had diagnosed their problem, which is that most people who are in some kind of spiritual duress already know that they are in that state, and do not want to be told how hard-hearted they are.
Nephi gave them three very helpful steps. He began, "Now my brethren." Nephi was shifting his tone away from a warning and condemning tone. "Now my brethren, if ye were righteous and were willing to hearken to the truth, and give heed unto it, that ye might walk uprightly before God, then ye would not murmur because of the truth" (1 Nephi 16:3). This statement can be broken down into the following three components:
Nephi gave us all here a formula for success, a way in which we can help ourselves and others to avoid ending up where Laman and Lemuel did.
Matthew L. Bowen, "’If Ye Will Hearken’: Lehi’s Rhetorical Wordplay on Ishmael in 2 Nephi 1:28–29 and Its Implications," Interpreter: A Journal of Latter-day Saint Faith and Scholarship 25 (2017): 157–189.