Genesis 27:39-41

Then Isaac his father 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. By your sword you shall live, And your brother you shall serve; But it shall come about when you become restless, That you will break his yoke from your neck.” So Esau bore 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.”