Why does the Torah repeat "al-Pi ha'Goral ... "?
Rashi: To teach us that the Goral actually spoke, 1 thereby demonstrating that the lots worked via Ru'ach ha'Kodesh.
Ramban and Seforno: To teach us that also the families of each tribe received their portion of land via a Goral. 2
Bava Basra, 122a: To teach us that Eretz Yisrael was distributed by means of the Urim ve'Tumim. 3
What are the connotations of the words "Bein Rav li'Me'at"?
Ramban: It implies that a larger tribe received a larger portion, and a smaller tribe, a smaller portion.
Sifri: It teaxhes us that the land was divided by assesssment - a Beis Kur (of poor-quality land) against a Beis Sa'ah (of superior-quality land). 1
Oznayim la'Torah (citing the Ha'amek Davar): In the event that two people of equal standing inherited two pieces of land which could be divided in two ways, the Goral decided how to they divide it.
See also Torah Temimah, citing the Yerushalmi Yoma, 4:1 and note 18.
