1. Ramban's explanation of "Masei Avos" as the ingrained potential for the future of Klal Yisroel(Bonim)
2. R' Be'chaya discusses the Koach of each land representing the characteristics of it's inhabitants and how Nations are drawn to specific characteristics of their lands.
3. Ramban - Avraham Recognizing/thanking Hashem for "being close to him" after receiving assurances as oppose to Recognizing/thanking Hashem the assurances alone.