Genesis 27:15-22

Then Rebekah took the best clothes of Esau her older son, which she had in the house, and put them on her younger son Jacob. She also covered his hands and the smooth part of his neck with the goatskins. Then she handed to her son Jacob the tasty food and the bread she had made. He went to his father and said, “My father.” “Yes, my son,” he answered. “Who is it?” Jacob said to his father, “I am Esau your firstborn. I have done as you told me. Please sit up and eat some of my game, so that you may give me your blessing.” Isaac asked his son, “How did you find it so quickly, my son?” “The LORD your God gave me success,” he replied. Then Isaac said to Jacob, “Come near so I can touch you, my son, to know whether you really are my son Esau or not.” Jacob went close to his father Isaac, who touched him and said, “The voice is the voice of Jacob, but the hands are the hands of Esau.”