Genesis 27:1-4; Genesis 27:22-23; Genesis 27:33
When Isaac was old and almost blind, he called for Esau, his older son, and said, "My son?" "Yes, Father?" Esau replied.
"I am an old man now," Isaac said, "and I expect every day to be my last.
Take your bow and a quiver full of arrows out into the open country, and hunt some wild game for me.
Prepare it just the way I like it so it's savory and good, and bring it here for me to eat. Then I will pronounce the blessing that belongs to you, my firstborn son, before I die."
So Jacob went over to his father, and Isaac touched him. "The voice is Jacob's, but the hands are Esau's," Isaac said to himself.
But he did not recognize Jacob because Jacob's hands felt hairy just like Esau's. So Isaac pronounced his blessing on Jacob.
Isaac began to tremble uncontrollably and said, "Then who was it that just served me wild game? I have already eaten it, and I blessed him with an irrevocable blessing before you came."