Genesis 27:20

18He came to his father, and said, “My father?” He said, “Here I am. Who are you, my son?”

19Jacob said to his father, “I am Esau your firstborn. I have done what you asked me to do. Please arise, sit and eat of my venison, that your soul may bless me.”

20Isaac said to his son, “How is it that you have found it so quickly, my son?” He said, “Because the LORD your God gave me success.”

21Isaac said to Jacob, “Please come near, that I may feel you, my son, whether you are really my son Esau or not.”

22Jacob went near to Isaac his father. He felt him, and said, “The voice is Jacob’s voice, but the hands are the hands of Esau.”