Genesis 27:38-42

Esau said to his father, “Do you have only one blessing, my father? Bless me, me as well, my father.” So Esau raised his voice and wept.

Then his father Isaac answered and said to him, “Behold, away from the fertility of the earth shall be your dwelling, And away from the dew of heaven from above.

“And by your sword you shall live, And you shall serve your brother; But it shall come about when you become restless, That you will break his yoke from your neck.”

So Esau held a grudge against Jacob because of the blessing with which his father had blessed him; and Esau said to himself, “The days of mourning for my father are near; then I will kill my brother Jacob.”

Now when the words of her elder son Esau were reported to Rebekah, she sent word and called her younger son Jacob, and said to him, “Behold your brother Esau is consoling himself concerning you by planning to kill you.