Numbers 26:55

לשמות מטה אבתם ACCORDING TO THE NAMES OF THE TRIBES OF THEIR FATHERS [THEY SHALL INHERIT] — These (the fathers referred to) were they who came out of Egypt. — Scripture treated this inheritance differently to all other inheritances mentioned in the Torah, for in the case of all other inheritances the living become heirs to the dead, whilst here the dead become heirs to the living. How is this so? Two brothers who were of those who came out of Egypt who had sons at least twenty years old amongst those who came into the Land, one son to this and three to that, the one son took one portion, and the three took three portions, for it is said, (v. 53) “To these (enumerated in the census taken immediately before they entered Palestine) shall the land be divided”. Their inheritance (that of these four) returns to (is regarded as having belonged to) their fathers’ father, and they (the two brothers who have four sons between them), divide equally. This is what is stated, “according to the names of the tribes of their fathers they shall inherit” — that after the sons have received they divide it according to the fathers who came out of Egypt. If, however, they had straightway divided it according to the number of those who came out of Egypt these four would have taken only two portions, whilst now they take four portions (Bava Batra 117a; Sifrei Bamidbar 132:1). אך בגורל — Joshua and Caleb are excepted from this method of division (since אך is a limiting term) and so indeed it states, (Judges 1:20) “And they gave Hebron to Caleb as Moses had said” (cf. Rashi on Numbers XlV. 24), and it further states, (Joshua 19:50) “According to the command of the Lord they gave him (Joshua) the city which he had asked” (Sifrei Bamidbar 132:3). מטות אבתם THE TRIBES OF THEIR FATHERS — Consequently proselytes and slaves were excepted (Sifrei Bamidbar 132:4).

אַךְ־בְּגוֹרָ֕ל יֵחָלֵ֖ק אֶת־הָאָ֑רֶץ לִשְׁמ֥וֹת מַטּוֹת־אֲבֹתָ֖ם יִנְחָֽלוּ׃

Nevertheless the land shall be divided by lot: according to the names of the tribes of their fathers they shall inherit.