창세기 36:6의 Musar

The scoffers of that generation maintained that Sarah had been impregnated by Avimelech and that Isaac was the issue. They claimed that, had Abraham been Isaac's father, it would have been impossible for Isaac to have fathered a son such as Esau who pursued married women to commit adultery with them under the noses of their husbands. Isaac's extraordinary success as well as the fact that he was sanctified on Mount Moriah and not allowed to leave the holy soil of ארץ ישראל, all served to show that he was indeed a true son of Abraham. Of Esau the Torah reports in Genesis 36 6: וילך עשו אל ארץ, "Esau went to a land." He had to leave ארץ ישראל because that land "vomits" people who behave in a grossly incestuous manner. Isaac was the model of refinement in every respect. The reason G–d blessed him in such an extraordinary fashion was to demonstrate the fact to one and all that sexually pure conduct unlocks all the bounty of the land of Israel to those who dwell in it.