Kabbalah su Genesi 11:78

What is written before the verse, "Hashem said to Abram..."? The words, "And Haran died before his father Terah" (Gen. 11:28). What does he want to inform us? (During his father's lifetime) this cannot be, for had he no other person until that day died during his father's lifetime beside Haran? When Abraham was thrown to the fire, Charan was killed. Because of this, they left Ur of the Chaldeans...

He watched attentively, weighed, and realized that the middle point of the inhabited world is the point from which the whole world moves out to all its corners. Similarly, he knew the power that now prevails over the point. All other powers that govern the corners of the world originate from that point and all (the Sefirot) hold to it. Then "they went out with them from Ur of the Chaldeans, to go to the land of Canaan." (Gen. 11:31).

There are five groups in the mixed multitude. These are the Nefilim (fallen), the Giborim (mighty), the Anakim (giants), the Refaim (shades) and the Amalekites. Because of them, the small Hei fell from its place (Binah). Bilaam and Balak come from the side of Amalek, because if you remove the letters Am from Bilaam and the letters Lak from Balak, you are left with Babylon (Heb. Bavel). "Therefore is the name of it called Babylon; because Hashem did there confound (Heb. balal) the language of all the earth" (Beresheet 11:9).

Of the Giborim, (mighty ones), the third group, it is written: "The same were mighty men of old, men of renown (lit. 'men with a name')" (Beresheet 6:4). These descend from the side of those, about whom it is said: "Let us build us a city and a tower...and let us make us a name..." (Beresheet 11:4). They, this group of the mixed multitude, build synagogues and Yeshivot, putting the scroll of the Torah and a crown upon its top, not in the name of Hashem. Instead, it is done to make themselves a name, as it is written: "And let us make us a name." (The children of) the Other Side, overcame Yisrael, who are (blessed to be) like the dust of the earth. They rob them, shattering their work. Of them, it is written: "And the waters prevailed exceedingly upon the earth" (Beresheet 7:19)

The Rav of the Yeshiva said, it is written (Breishit 11:30), "Now Sarai was barren; she had no child." When it tells us that Sarai was barren, I already know that she had no child. So why [does the verse add], "she had no child"? Rather, here is what the Rav of the Yeshiva said: She had no child born to her, but souls she had born to her, by means of the cleaving with desire. These two righteous ones [Sarai and Avram] birthed souls for converts all the time that they were at Haran, just as the righteous make [souls for converts] in Gan Eden. As it says (Breishit 12:5), "the people [literally 'the soul'] that they acquired [literally 'made'] in Haran" -- they really did create that soul!