Musar su Geremia 32:19

I shall now proceed to explain the subject of blessing and Priest, Levite and Israelite respectively. It is accepted that the attributes represented by כהן, לוי, ישראל respectively, are the attributes חסד, גבורה, תפארת. These in turn are the mystical dimensions of our patriarchs. Abraham symbolizes חסד; Isaac symbolizes גבורה; Jacob symbolizes אמת, which we have repeatedly explained as corresponding to תפארת. Jacob is described as איש תם, a man of perfection, התם ומתמם, "someone who is perfect and kind to the blameless," a יושב אהלים, "dweller of tents," i.e. the median between the tent of Abraham and the tent of Isaac, embodying within himself the respective outstanding characteristics of both his father and grandfather. I have already explained at length in פרשת חיי שרה how all the patriarchs served as a force furthering G–d's objective to make this world perfect. True, the world had been created by the attribute of חסד, as we know from עולם חסד יבנה, in Psalms 89,3. It had always been G–d's intention to eventually base the world on the attribute of דין, Justice, so that man could experience a system of לתת לאיש כדרכיו וכפרי מעלליו, "to repay each man in accordance with his ways and with the fruit of his deeds" (Jeremiah 32,19). Isaac represented this latter ideal, and he was the first human being to whom G–d could successfully apply that yardstick. Since the world as a whole could not measure up to such a demanding standard, Jacob combined within his person a blend of both attributes to serve as a role model for future generations of mankind. There is a slight tilt towards the attribute of חסד, Justice and Mercy are not evenly balanced.