Isaac did not know it was Jacob, because his arms were hairy like Esau’s arms. So Isaac blessed Jacob.
But Jacob told his mother Rebekah, “My brother Esau is a hairy man. I am not hairy like him.
Rebekah took the skins of the goats and put them on Jacob’s hands and on his neck.
So Jacob went to Isaac his father. Isaac felt him and said, “Your voice sounds like Jacob’s voice. But your arms are hairy like the arms of Esau.”
Isaac said, “Are you really my son Esau?”
Isaac blessed the future of Jacob and Esau. Isaac did that because he had faith.