Chasidut su Genesi 21:33

Avraham, however, understood that God, “fills the whole world with His glory.” He removed the orlah,³⁹Orlah means “foreskin.” The author is stating that Avraham’s removal of concealment of G-d paralleled his own act of circumcision. This idea is found in the Zohar, and many Kabbalistic and hasidic writings. the force of concealment, which divided God’s light from man’s understanding. Thus we find after he was given the commandment of circumcision (milah) it is said (Bereshit, 21:33), “And he called in the name of Hashem, the God of the world.” This means that God’s existence became apparent in all aspects of the creation, as the Midrash Rabbah (Vayera, 48) states, on the verse (Iyov, 19:26), “‘From my flesh I shall see God’ – Were it not for the act of circumcision, how could God have been revealed to me?” That is, he saw God’s light in every detail of creation. When Avraham said, “I raise my hands to the Supernal God,” it was before the circumcision.⁴⁰See the Beit Yaakov in parshat Lech Lecha, 33. Similarly, we find that the Patriarchs taught the Torah to their sons. The Midrash⁴¹Midrash Tankhuma, Vayigash 11; Midrash Rabbah,Vayigash 95; Midrash Rabbah, Shemot 5. tells us that while Israel was in Egypt they possessed scrolls with which they would delight in each Shabbat.