This verse provides an important glimpse into the humanity that is described for the family Lehi. Nephi sorrows, and his sorrow is visible. Laman and Lemuel see that sorrow and interpret it in their own terms, seeing it as a discouragement that the ship will not be built due to the labor boycott. Nephi's reason for sorrow, however, had more to do with the brothers denial of the influence of the Lord than the delay in building the ship. By this time, Nephi is confident that if the Lord requires a ship, a ship will be build. His sorrow is not discouragement - despite the way his brothers read him.