Musar su Genesi 39:6

(Bereshith 39:6): "And Joseph was beautiful in from and in appearance": As Rashi explains it, once he saw himself elevated, he began preening his hair, at which the Holy One Blessed be He said to him: "Your father is in mourning and you preen your hair! I will incite the 'bear' against you," whereupon (Ibid. 7): "And it was, after these things, that the wife of his master, etc." and Heaven contrived to have him placed in the prison house.

We see from the above that both Jacob and Joseph repaired damage caused by the אדמוני, since both hated Esau. What our sages said about Adam giving 70 years of his life to David is also true. The whole point of granting life to David was to repair the damage done to G–d's universe by Adam, without which a Messianic age and all its benefits to mankind would not be needed. Adam's צלם אלוקים, divine image, needed to be restored first and foremost through the constructive lives of the patriarchs. We explained all this in our commentary on Parshat Chayey Sarah. The 70 years Adam donated to David were "illuminated," assumed a positive meaning through Jacob and Joseph having donated 70 years of their already meaningful lives. We have explained earlier that the "beauty" of Jacob was of the same quality as the beauty of Adam [before his sin, of course. Ed.]. Genesis 39,6 describes Joseph as: ויהי יוסף יפה תואר, he had handsome features for he evidently inherited these from his father, seeing Joseph is viewed as his father's replica. We have seen from Samuel I 16,12 that David's features are described in similar terms. Once the Messiah will arrive on earth, Adam will be rehabilitated completely, will be אד"ם, the first letters respectively of the incarnations in אדם דוד משיח.