Esau Falls by the Hand of Rachel's Children

"And you were faint and weary" (Deuteronomy 25:18) — faint from thirst and weary from the road. "And he did not fear God" (Deuteronomy 25:18). Rabbi Pinhas said in the name of Rabbi Shmuel bar Nahman: It is a tradition of the aggadah that the seed of Esau falls only by the hand of the children of Rachel, as it is written, "Surely the little ones of the flock shall drag them away" (Jeremiah 49:20). And why does he call them "the little ones of the flock"? Because they were the youngest of the tribes. Of this one [Joseph] it is written "na'ar" [youth], and of that one [Esau's descendant] it is written "katan" [small]. Of this one it is written "na'ar": "and he was a youth" (Genesis 37:2). And of that one it is written "katan": "behold, I have made you small among the nations" (Obadiah 1:2). This one [Joseph] grew up between two righteous people and did not act according to their deeds; and that one [Esau] grew up between two wicked people and did not act according to their deeds — let this one come and fall by the hand of that one. This one [Joseph] was mindful of the honor of his Maker, and that one despised the honor of his Maker — let this one come and fall by the hand of that one. And of that one it is written, "and he did not fear God" (Deuteronomy 25:18), and of this one [Joseph] it is written, "I fear God" (Genesis 42:18) — let this one come and fall by the hand of that one.