Was Rebekah a spiritual woman, that is, interested in spiritual things? Rebekah was a spiritual woman as she went to God about her pregnancy with the twins jostling inside of her and He spoke to her.
Was Isaac a spiritual man? Yes he was. He also was concerned about others as he did pray for his wife and his prayers were answered.
Which do you think was the more spiritually sensitive? I believe Isaac may have been for he never gave up on God with his prayers to have his wife give him a son. Rebeka appears to be more depressed as she was barren and felt a disgrace for not being able to have children and I do not see where she prayed herself for a pregnancy.
What evidence of spirituality do you see in Jacob? His ability to wait.
In Esau? None, as he despised his birthrite.