of Zerah, the clan of the Zerahites; of Shaul, the clan of the Shaulites.
This is the register of the tribes as they were now enrolled, in the same order that they were numbered in ch. 1. Observe, I. The account that is here kept of the families of each tribe, which must not be understood of such as we call families, those that live in a house together, but such as were the descendants of the several sons...
Commenting on Numbers 26:5-51
Num 26:12-14 The Simeonites counted only five families, as Ohad (Gen 46:10) left no family. Nemuel is called Jemuel there, as yod and nun are often interchanged (cf. Ges. thes. pp. 833 and 557); and Zerach is another name of the same signification for Zohar (Zerach, the rising of the sun; Zohar, candor, splendour).
Commenting on Numbers 26:12-14