Another matter, what is “You [have circled] enough…”? Rabbi Aḥa said: If you harm him, you are really harming yourselves. How so? His father blessed him with one blessing: “By your sword you will live” (Genesis 27:40), and he blessed Jacob with ten blessings.
From where is this derived? As it is written: “God will give you from the dew of the heavens” (Genesis 27:28).48Ten blessings are listed in this verse and the following one. If his blessing is void, your ten blessings will be void – “you have circled enough…”49The midrash is commenting on the verses that follow, in which the Israelites are warned not to confront Edom. Alternatively, it is picking up on the Hebrew words for “you…enough [rav lakhem],” which can be translated to mean that what is yours [lakhem] is greater [rav] than that which is Esau’s (Midrash HaMevoar).