Yitzchak smelled the difference between Yaakov and Eisav and realized that the blessing had to go to Yaakov.
Read the verses.
Jacob was wearing the cloths of Esau, so blind Jacob though he was Esau
I've been studying the story for about 35 years.
35 years and you still do not get it. Its about deceit.
He gets it, penny dear. You do not. Long ago--(very long ago-----in my adolescence) I read
the Bhagavad Gita and the Ramayana------and the Koran. Not being an idiot---I did not come
out of that experience imagining that I NOW UNDERSTAND HINDUISM AND ISLAM. When reading
scriptural writing-----understanding cannot be attained by a person not familiar with the original
language or the cultural symbols and allusions----of the people that generated the work. In the
course of my life I have worked with and socialized with both Hindus and Muslims-----and THUS
came to some level of understanding of the religions and their scriptural works. Yitzchak is a
very interesting CHARACTER in the bible. In fact--in terms of ancient literature he has a VERY
VERY important deficit-----HE IS BLIND. Remember Oedipus? he got to be blind too.
Remember TIRESIAS? He is a BLIND ORACLE that pops up in Greek Legends-----
Blindness is a much recognized SYMBOL of something like -----"ABILITY TO SEE INVISIBLE
TRUTHS"------Yitzchak gets that role lots in his life-------he is considered to be at least
somewhat blind since the "sacrifice incident" It is a symbol MUCH understood in ancient time----
(did you pass high school literature class?) The story of Isaac and his sons is not a story about
DECEIT-------that is the theme is not DECEIT-------it is insight