Genesis 27:6

Rebekah spake unto Jacob Rebekah is here contriving to procure the blessing for Jacob, which was designed for Esau. If the end were good, the means were bad, and no way justifiable. If it were not a wrong to Esau to deprive him of the blessing, he himself having forfeited it by selling the birthright, yet it was a wrong to Isaac to take advantage of his infirmity to impose upon him: it was a wrong to Jacob, whom she taught to deceive by putting a lie in his mouth. If Rebekah, when she heard Isaac promise the blessing to Esau, had gone to him, and with humility and seriousness put him in remembrance of that which God had said concerning their sons; if she had further showed him how Esau had forfeited the blessing, both by selling his birthright, and by marrying of strange wives; it is probable Isaac would have been prevailed with to confer the blessing upon Jacob, and needed not thus to have been cheated into it. This had been honourable and laudable, and would have looked well in history; but God left her to herself to take this indirect course, that he might have the glory of bringing good out of evil.