What is "be'Hancheil Elyon Goyim" referring to?
Rashi: Refer to 32:7:3:1. It refers to when Hashem distributed their portions to those who angered him, He drowned and swamped them.
Targum Yonasan. Da'as Zekenim, Hadar Zekenim: It refers to when Hashem divided the descendents of No'ach into nations.
What is "be'Hafrido B'nei Adam" referring to?
Rashi: It refers to when Hashem scattered the Dor Haflagah. 1
Targum Yonasan: It refers to when Hashem separated the scripts and the languages of the people of the generation of the Haflagah.
Da'as Zekenim, Hadar Zekenim and Rosh: When each person went to his [own] alloted territory..
What are the implications of "Yatzeiv Gevulos Amim le'Mispar B'nei Yisrael"?
Rashi, Targum Onkelos and Targum Yonasan: [When He scattered the Dor Haflagah, He could have destroyed them from the world. But He did not. He kept them alive, and set up the seventy nations 1 (because of the seventy B'nei Yisrael that were destined to descend from Shem 2 - and) because of the seventy souls who went down to Egypt'.
Rashbam: The Torah in Lech-L'cha Bereishis, Perek 10, lists seventy descendants of Noach, from which the seventy nations desended, but it] specifies the borders only of Cana'an, for it will be for Yisrael. Cana'an and his eleven sons, twelve in all - corresponding to the twelve tribes if Yisrael. 3
Da'as Zekenim, Hadar Zekenim and Rosh: Hashem chose an inheritance for the twelve tribes of Yisrael before they were born. He gave Eretz Yisrael to Cana'an, 4 who were Avadim of Shem, and would therefore be unable to protest when Yisrael would ultimately take it from them. 5
Chagigah, 12b: It implies that the world stands on twelve pillars. 6
Targum Yonasan: Which He did by drawing lots with the seventy angels who would ultimately govern them - who accompanied Him when He went down to inspect the city that the people were building. Ramban: Because every nation has a guardian angel that governs it - See Devarim 4:1, except for Yisrael, who fell to Hashem's lot, which explains the Midrash - that the image of Ya'akov is engraved underneath the Kisei ha'Kavod.
See Sifsei Chachamim.
See Lech-L'cha Bereishis, 10:5.
Cana'an had twelve sons, corresponding to the twelve tribes of Yisrael. The Torah lists only eleven, but "ve'Achar Nafotzu Mishpechos ha'Cana'ani" - Bereishis, 10:18 - one of the families split, and the P'rizi, who is not mentioned among Cana'an's sons, was subsequently added..
Hadar Zekenim: Because what an Eved acquires belongs to his master.
See Torah Temimah, note 47.
