[57] [cap.10] We have now thus spoken at sufficient length concerning the rewards proposed for each individual man: but rewards are also offered to whole houses, and to very numerous families. When the nation was originally divided into twelve tribes, there were at once appointed patriarchs equal in number to the tribes, being not merely of one house or family, but connected by a still more genuine relationship: for they were all brothers having one and the same father; and the father and grandfather of these men were, with their father, the original founders of the whole nation.