Having given blessings to his sons, Lehi turns to his grandchildren to pronounce a blessing upon them also (verse 6).
Sociological information: Lehi gives a blessing to his grandchildren, but divides those grandchildren by their direct lineage head, one of Lehi's sons (see the similar division for the children of Lemuel in verse 8, Ishmael in 10 and Sam in 11). Very clearly Lehi saw himself in a parallel position to Jacob of old, where his children were to form specific tribal organizations. As the populators of a new world, they would be required to "replenish" the earth and spread over the face of the land. The initial organizational principle instigated by Lehi followed the Old Testament model of tribes.
It is highly likely that this tribal organization continued throughout much of the socio-political history of Lehi's descendants in the New World. Even when combined into a larger political group, such as at Zarahemla, a tribal organization provided a finer grain of organization and control. This agglomerated tribal model appears also to have been the basis for many of the Mesoamerican city states. The city political organization would have a ruler, but the city itself was often divided into lineage units. The best known of these is the very late Calpulli of the Mexica (Aztec) empire. While the Calpulli had become something more than a simple lineage, nevertheless genealogy was a major structural factor in determining the boundaries of the Calpullin.