The 1st baby that was born, his skin colour was a bit red. He also had hair all over his body, like an animal skin. Isaac and Rebekah named that baby Esau.
A long time later, when Isaac was old, his eyes got really weak and he couldn’t see. One day, Isaac sent somebody to get his oldest son Esau. Then Esau came to him, and Isaac said, “My son.” And Esau said, “Yes, Father?”
So Isaac didn’t know that Jacob tricked him. He thought, “Now I know that this is Esau, because his arms are really hairy. I will eat that food that he made, and then I will ask God to be good to him as the next leader for our family.”