Gently though Esau continued to speak to his father, he yet longed for his end to come.[77] But Isaac was stricken with spiritual as well as physical blindness. The holy spirit deserted him, and he could not discern the wickedness of his older son. He bade him sharpen his slaughtering knives and beware of bringing him the flesh of an animal that had died of itself, or had been torn by a beast, and he was to guard also against putting an animal before Isaac that had been stolen from its rightful owner. "Then," continued Isaac, "will I bless him who is worthy of being blessed."[78] This charge was laid upon Esau on the eve of the Passover, and Isaac said to him: "To-night the whole world will sing the Hallel unto God. It is the night when the storehouses of dew are unlocked. Therefore prepare dainties for me, that my soul may bless thee before I die." But the holy spirit interposed, "Eat not the bread of him that hath an evil eye."[79] Isaac's longing for tidbits was due to his blindness. As the sightless cannot behold the food they eat, they do not enjoy it with full relish, and their appetite must be tempted with particularly palatable morsels. Esau sallied forth to procure what his father desired, little recking the whence or how, whether by robbery or theft.[80] To hinder the quick execution of his father's order, God sent Satan on the chase with Esau. He was to delay him as long as possible. Esau would catch a deer and leave him lying bound, while he pursued other game. Immediately Satan would come and liberate the deer, and when Esau returned to the spot, his victim was not to be found. This was repeated several times. Again and again the quarry was run down, and bound, and liberated, so that Jacob was able meanwhile to carry out the plan of Rebekah whereby he would be blessed instead of Esau. Though Rebekah had not heard the words that had passed between Isaac and Esau, they nevertheless were revealed to her through the holy spirit,[81] and she resolved to restrain her husband from taking a false step. She was not actuated by love for Jacob, but by the wish of keeping Isaac from committing a detestable act.[82] Rebekah said to Jacob: "This night the storehouses of dew are unlocked; it is the night during which the celestial beings chant the Hallel unto God, the night set apart for the deliverance of thy children from Egypt, on which they, too, will sing the Hallel. Go now and prepare savory meat for thy father, that he may bless thee before his death.[83] Do as I bid thee, obey me as thou art wont, for thou art my son whose children, every one, will be good and God-fearing—not one shall be graceless."