במדבר כב:ו מדרש: Midrash Tanchuma Buber וBamidbar Rabbah

(Numb. 22:6:) SO COME NOW PLEASE, CURSE (arah) <THIS PEOPLE> FOR ME. What is the meaning of CURSE ('RH) … FOR ME? Perhaps I shall be able to control them little by little, like someone who picks (rt.: 'RH) figs.

(Numb. 22:6, cont.:) FOR THEY ARE MIGHTIER THAN I. <It is> not that they are more valiant than I, nor <is it> that their forces are more numerous than mine. It is simply that they conquer through their mouth, <and this is> something that I cannot do.

(Numb. 23:7, cont.:) COME, PLEASE,⁶⁵Na. The word is not found in the Masoretic Text. CURSE <JACOB> FOR ME. Whoever curses them (i.e., the children of Jacob) is cursing himself, since it is stated (in Gen. 12:3): AND THE ONE WHO CURSES YOU, I WILL CURSE. It also says (in Gen. 27:29): CURSED BE THOSE WHO CURSE YOU,⁶⁶See above, Gen. 6:16. AND BLESSED BE THOSE WHO BLESS YOU.