Genesis 27:39

He said, “Isn’t he rightly named Jacob? For he has supplanted me these two times. He took away my birthright. See, now he has taken away my blessing.” He said, “Haven’t you reserved a blessing for me?”

Isaac answered Esau, “Behold, I have made him your lord, and all his brothers I have given to him for servants. I have sustained him with grain and new wine. What then will I do for you, my son?”

Esau said to his father, “Do you have just one blessing, my father? Bless me, even me also, my father.” Esau lifted up his voice, and wept.

You will live by your sword, and you will serve your brother.

It will happen, when you will break loose,

that you will shake his yoke from off your neck.”

Esau hated Jacob because of the blessing with which his father blessed him. Esau said in his heart, “The days of mourning for my father are at hand. Then I will kill my brother Jacob.”

The words of Esau, her elder son, were told to Rebekah. She sent and called Jacob, her younger son, and said to him, “Behold, your brother Esau comforts himself about you by planning to kill you.