Musar su Genesi 16:12

We read in the Sefer Habahir, that the reason the Torah commands circumcision to be performed on the eighth day of the infant's life is that man possesses eight extremities, i.e. his right and left hand, the right and left foot, the head, the body, the male member and its mate, since the Torah describes man as "ודבק אשתו והיו לבשר אחד, "he cleaves to his wife so that they become one flesh” (Genesis 2,24). When G–d said to Abraham: אני הנני בריתי אתך, "I, here My covenant is with you," this is a reference to the fact that the שכינה is known as Ani, and that the heavenly covenant is symbolized on the body by a ציון, a mark. Once the male glans is uncovered, this enables the שכינה to return to ציון, Zion, and man on earth remains whole, retains the image of G–d. When that condition exists, all his 248 limbs are whole, and this is what the name 248=אברהם represents. When in that condition, Abraham is able to enter the Zion on this earth. We can then be a nation on our own land for the imprint of G–d is on our bodies. This seal signifies that we are permanently different and distinct from the other nations and are indeed part of the holiness of G–d.

If the repentance is not total G–d withdraws His right hand, מאחור, away from the face of the enemy. The "enemy" is Samael, our perennial accuser and his armies who face us in this world; we know this from the Tikkuney Hazohar who comments on Genesis 16,12 where Hagar is told about the forthcoming birth of Ishmael: על פני כל הארץ ישכון, "He will be at home all over the earth." The significance of the parable describing G–d as withdrawing His right hand backwards is that the left hand normally is employed in adiministering דין, justice, whereas the right hand symbolises חסד, love extended to the חצונים, the קליפות which are known as אחוריים, "the ones behind". Psalm 77,1.1 refers to this idea when the Psalmist says: "I have said that it is my fault that the right hand of the Most High has changed."

And, also, in most cases this will also cause him bodily harm; for he will be trained from his youth to fulfill his lusts, and when he cannot adequately satisfy them, he will injure men in all the ways that he can — through theft, robbery, and violence. "His hand will be against all, and the hand of all, against him" (Bereshith 16:12).