36:20ל״ו:כ׳
1 א

ישבי הארץ. שֶׁהָיוּ יוֹשְׁבֶיהָ קֹדֶם שֶׁבָּא עֵשָׂו לְשָׁם. וְרַבּוֹתֵינוּ דָּרְשׁוּ (שבת פ"ה) שֶׁהָיוּ בְּקִיאִין בְּיִשּׁוּבָהּ שֶׁל אֶרֶץ; מְלֹא קָנֶה זֶה לְזֵיתִים, מְלֹא קָנֶה זֶה לִגְפָנִים, שֶׁהָיוּ טוֹעֲמִין הֶעָפָר וְיוֹדְעִין אֵי זוֹ נְטִיעָה רְאוּיָה לוֹ:

ישבי הארץ THE INHABITANTS OF THE LAND — i.e. who had been its inhabitants before Esau came there. Our Rabbis explained (Shabbat 85b) that they are called יושבי הארץ because they were experts in making the land habitable (by skillful cultivation) saying: this entire rood of ground is suitable for planting olives, that entire rood for vines — because they tasted the soil and so discovered what was suitable for planting in it.