Isaac didn't realize it was really Jacob because his hands were hairy like his brother Esau's, so Isaac got ready to bless him.
“But listen,” Jacob replied to his mother Rebekah, “my brother Esau is a hairy man, and I'm a smooth man.
She put the goatskins on his hands and on the smooth part of his neck.
Jacob went over to his father Isaac, who touched him and said, “It's Jacob's voice but Esau's hands.”
“It's really you, my son Esau?” he asked again. “Yes, it's me,” Jacob replied.
Trusting in God, Isaac blessed Jacob and Esau in regard to what the future would bring.