Genesis 27:41

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

Read Genesis 27:41 Using Other Translations

And Esau hated Jacob because of the blessing wherewith his father blessed him: and Esau said in his heart, The days of mourning for my father are at hand; then will I slay my brother Jacob.
Now Esau hated 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 approaching; then I will kill my brother Jacob."
From that time on, Esau hated Jacob because their father had given Jacob the blessing. And Esau began to scheme: “I will soon be mourning my father’s death. Then I will kill my brother, Jacob.”