זאת הארץ אשר תפל לכם בנחלה ארץ כנען לגבלתיה
Rashi explains the term, tipol lachem, “shall fall to you.” Since the land had been apportioned by lottery, its division was expressed in terms of “falling.” Alternatively, he quotes the Midrash that explains “falling” as a reference to Hashem causing the ministering angels of the seven nations, who at that time inhabited the land of Canaan, to “fall” from the Heavens. They were bound up before Moshe Rabbeinu. Hashem said to Moshe, “Look, they no longer have koach, strength.” Hashem expects us to be mishtadel, endeavor, regardless of the fact that it is Hashem Who prepares the path of success….