In Chapter 7, Laman & Lemuel and some of Ishmael's family rebel against Nephi and Lehi. And I know that it was wrong of them, and it was certainly wrong of them to try and kill Nephi, but at the same time, I feel some sympathy for them.
If you think about it, all of these people had a very comfortable life in Jerusalem. And suddenly that was all jerked away from them. Suddenly they found themselves living in the wilderness, doing without all the comforts and entertainments they were used to. It must have been very difficult to deal with. When I picture how I would feel in this situation, I think I would feel rebellious, too!
In spite of all they did to Nephi in the course of their rebellion, he forgave them freely, with great hopes that they would stay on the right path. A great example of how we should behave towards those who wrong us!