8 And it came to pass that he called the name of the river, Laman, and it emptied into the Red Sea; and the valley was in the borders near the mouth thereof.
9 And when my father saw that the waters of the river emptied into the fountain of the Red Sea, he spake unto Laman, saying: O that thou mightest be like unto this river, continually running into the fountain of all righteousness!
10 And he also spake unto Lemuel: O that thou mightest be like unto this valley, firm and steadfast, and immovable in keeping the commandments of the Lord!
11 Now this he spake because of the stiffneckedness of Laman and Lemuel; for behold they did murmur in many things against their father, because he was a visionary man, and had led them out of the land of Jerusalem, to leave the land of their inheritance, and their gold, and their silver, and their precious things, to perish in the wilderness. And this they said he had done because of the foolish imaginations of his heart.
Lehi, as a loving parent, really wants the best for his children. Good parents always seem to want this, even when the feeling is not mutual. In this case, Lehi compared his rebellious sons to how he would like them to be, righteous and steady. I don’t think he is just saying this so they will leave him alone. This is evident in 1 Nephi 8:37, when Lehi is preaching “with all the feeling of a tender parent.” He wants them to be righteous for their own sakes. Proverbs 20:20 says, “Whoso curseth his father or his mother, his lamp shall be put out in obscure darkness." This seems to refer to the light of Christ. Everyone begins life with the light of Christ (Moroni 7:8), which is how we discern good from evil, even without the Gift of the Holy Ghost. If a person will harden himself to the point of rebelling against his parents, those who have given him life, then he will eventually rebel against Him who gives spiritual and eternal life, Jesus Christ. The light goes out, and he (the rebel) puts it out himself. This grows into apostasy, rebellion, and stiffneckedness.