Commento su Deuteronomio 11:11

ארץ הרים ובקעת [THE LAND WHITHER THOU ART PASSING IS] A LAND OF HILLS AND VALLEYS — The mountain is better than the plain because in the plain, in an area that takes a Kor of seed, you can sow only a Kor, but in the mountain the summit of which is an area that takes a Kor, from it you have areas for five Kors of seed: four from its four slopes and one on its summit (Sifrei Devarim 39:3).

למטר השמים תשתה מים. For there are not enough rivers to irrigate the farmland so that the earth requires rainfall to irrigate the crops.

והארק אשר אתם עוברים שמה, "and the land which you are crossing over to, etc." Why does Moses repeat the words: "the land you are crossing over to," having said something almost identical in verse 10 already? I believe we have to understand these two verses as follows. Although the Torah had already extolled the virtues of the land of Canaan, describing it as a land flowing with milk and honey, the Torah had to contrast it with Egypt which is also a land blessed with excellent produce as the Torah had testified in Genesis 13,10: "like a garden of G'd, like the land of Egypt." Moses explains that whereas Egypt receives its bounty only by means of natural means, without special providence by G'd, it has another disadvantage compared to the land of Canaan in that you have to irrigate the land with back-breaking labour, whereas in the land of Canaan the rain does the irrigating.

ארץ הרים ובקעות, “a land of hills and valleys.” No one was able to irrigate his fields by drawing on the waters from the rivers. Seeing that you will depend on rainfall at the appropriate season, you will do well to observe the commandments properly.

ובקעת — these are the plain lands.