Genesis 27:19-20, 24

Jacob said to his father, “I am Esau your firstborn; I have done as you told me. Get up, please, sit and eat of my game, that you may bless me.” Isaac said to his son, “How is it that you have it so quickly, my son?” And he said, “Because the LORD your God caused it to happen to me.”

And he said, “Are you really my son Esau?” And he said, “I am.”