Genesis 27:13

13.Upon me be thy curse, my son. Here Rebekah sins again, because she burns with such hasty zeal that she does not consider how highly God disapproves of her evil course. She presumptuously subjects herself to the curse. But whence this unheeding confidence? Being unfurnished with any divine command, she took her own counsel. Yet no one will deny that this zeal, although preposterous, proceeds from special reverence for the word of God. For since she was informed by the oracle of God, that Jacob was preferred in the sight of God, she disregarded whatever was visible in the world, and whatever the sense of nature dictated, in comparison with God’s secret election. Therefore we are taught by this example, that every one should walk modestly and cautiously according to the rule of his vocation; and should not dare to proceed beyond what the Lord allows in his word.