45. "And one told Jacob, and said, 'Behold, your son Joseph comes to you'" (Beresheet 48:2). Rabbi Yosi said, It was an angel WHO TOLD JACOB that he was about to pronounce good words about the children of Yisrael at the time they would return to the Holy One, blessed be He, with all their troubles, when The Messiah's end was to come. And He would say to the attribute, JACOB, THE SECRET OF TIFERET, your children are come to you, and the good ones, THE CHILDREN OF YISRAEL, will be redeemed.
46. Happy is the portion of Yisrael, who are named the children of the Holy One, blessed be He, that are like angels, OF WHOM IT SAYS, "And all the sons of Elohim shouted for joy" (Iyov 38:6). YISRAEL IS ALSO CALLED the sons of Hashem, AS IT SAYS, "YOU ARE THE CHILDREN OF HASHEM YOUR ELOHIM" (DEVARIM 14:1).
47. Come and behold! Whence do we know that the Holy One, blessed be He, called Jacob, 'El?' He said to him: 'You shall be among the lower beings, and I shall be Elohim among the upper beings.' Whence do we know that? HE ANSWERS, It is written, "And Elohim went up from Abraham" (Beresheet 17:22). Thus the fathers are a Chariot to the Holy One, blessed be He. We learned that "you will show Truth to Jacob, Grace (Heb. chesed) to Abraham" (Michah 7:20) has in it two Sfirot, CHESED AND TRUTH, WHICH IS TIFERET in two bigger and higher Chariots - ABRAHAM AND JACOB.
48. The third one is Isaac, WHO BECAME A CHARIOT TO THE SFIRAH OF GVURAH. Whence DO WE KNOW THAT? FROM THE WORDS "And Jacob swore by the fear of his father Isaac" (Beresheet 31:53). For the fear of Isaac is a Sfirah of the Holy One, blessed be He, NAMELY GVURAH CALLED FEAR, AND BECAME the Throne of Glory, ITS supernal Chariot. Isaac's Sfirah, GVURAH, is more important and explicit than the other Sfirot of the fathers, CHESED AND TIFERET. For that reason it is written, "And Jacob swore by the fear of his father Isaac;" NAMELY BY THE SFIRAH OF GVURAH CALLED FEAR, WHICH IS THE MOST VALUABLE.
49. Rabbi Aba opened the discussion saying, "The Elohim of Abraham, and the Elohim of Nachor, the Elohim of their father, judge between us. And Jacob swore by the fear of his father Isaac." (Beresheet 31:53). From this verse, one may conclude THAT ISAAC'S SFIRAH IS MORE VALUABLE THAN THE OTHERS, FOR HE DID NOT SWEAR BY ELOHIM OF ABRAHAM, BUT BY THE FEAR OF ISAAC.