Genesis 27:1-4; Genesis 27:22-23; Genesis 27:33

1 One day when Isaac was old and turning blind, he called for Esau, his older son, and said, “My son.” “Yes, Father?” Esau replied. 2 “I am an old man now,” Isaac said, “and I don’t know when I may die. 3 Take your bow and a quiver full of arrows, and go out into the open country to hunt some wild game for me. 4 Prepare my favorite dish, and bring it here for me to eat. Then I will pronounce the blessing that belongs to you, my firstborn son, before I die.”
22 So Jacob went closer to his father, and Isaac touched him. “The voice is Jacob’s, but the hands are Esau’s,” Isaac said. 23 But he did not recognize Jacob, because Jacob’s hands felt hairy just like Esau’s. So Isaac prepared to bless Jacob.
33 Isaac began to tremble uncontrollably and said, “Then who just served me wild game? I have already eaten it, and I blessed him just before you came. And yes, that blessing must stand!”