Rabbi Jehudah said: Isaac blessed Jacob with ten blessings concerning the dews of heaven and the corn of the earth, corresponding to the ten words whereby the world was created, as it is said, "And God give thee of the dew of the heaven" (Gen. 27:28); "Let peoples serve thee, …" (Gen. 27:29). When Jacob went forth from the presence of his father Isaac, he went forth crowned like a bridegroom, and like a bride in her adornment, and the quickening dew from heaven descended upon him, and refreshed his bones, and he also became a mighty hero; therefore it is said, "By the hands of the mighty Jacob, from thence is the shepherd, the stone of Israel" (Gen. 49:24).