Adam Clarke on Genesis 27:13

Upon me be thy curse, my son - Onkelos gives this a curious turn: It has been revealed to me by prophecy that the curses will not come upon thee, my son. What a dreadful responsibility did this woman take upon her at this time! The sacred writer states the facts as they were, and we may depend on the truth of the statement; but he nowhere says that God would have any man to copy this conduct. He often relates facts and sayings which he never recommends.