1. Why was it so important to the people that they make a name for themselves? (11:4)
2. What else could the people have accomplished if God had decided to let them continue speaking the same language? (11:6)
3. Why did Hashem scatter the people and give them different languages? Wouldn't one have been enough? (11:8)
4. Why does the first verse say that they spoke the same language and used the same words? Doesn't one imply the other? (11:1/difficulty)
5. Why did God give them all the same language to begin with? After all, Hashem is omniscient and knew it would come to the point where they would have to be scattered. (11:1/difficulty)
(א) ויהי כל הארץ שפה אחת וגו' יש לתת לב לתור בענין דור הפלגה מה היא דעתם בבנות העיר והמגדל, שאם טעמם הוא בפרט מפרטי הכפירה לא נודע אופן הכפירה, גם לא היה ה' מספיק להענישם בהפיץ אותם לבד, ועוד צריך לדעת אומרו לא יבצר מהם כי ח"ו כמעט יבא הטועה לטעות בה, ועוד מה הוא כוונת הכתוב שכתב לנו ענין בנין העיר בפרטים המגונים, והלא ארז"ל כי מרצון ה' היה שיתעסקו בבנין העולם:
(1) ויהי כל הארץ שפה אחת. The whole earth had a single language. We must give some thought to the intent of the generation that built the Tower. What exactly did they mean to achieve by means of a city and a tower? If all they had in mind was to give expression to some aspect of heresy, how was that expressed by their building plans? If indeed their heresy was of a serious nature, their punishment, i.e. scattering them over the globe, seems an inadequate punishment. How would that punishment cure them of their heresy? The words ועתה לא יבצר מהם כל אשר יזמו לעשות, "Must not everything they are planning to do be withheld from them now?" are difficult. This line poses severe problems for a believer. Why did they say: "we will build a city for ourselves?" Who else was there to build a city for? Besides, did not G'd want mankind to construct a civilized universe? Surely He did not want a bunch of cave-dwellers?
ובב"ר (ל"ח) לשם ע"ז נתכוונו, אמרו לא כל הימנו שיבחור לנו את העליונים באו ונעשה עמו מלחמה. (ד) זהו ומגדל וראשו בשמים, וזה אינו כמשמעו כי לא היו טפשים לעשות מלחמה ממש אלא המלחמה הזאת באמונה היתה לעבוד זולתו, וכיון שנתפזרו בטלה הסכמתם:
According to Bereshit Rabbah 38;6, the plan to congregate and build the Tower was already idolatrous in its inception, their argument being that G’d cannot lay claim to heaven to assign only earth as the domain of man. They wanted to assert their independence from G’d’s control of their fates. [The language used in the Midrash is obviously not to be taken literally, i.e. ”conquest of heaven and placing a sword in the hand of a statue placed there by man,” but is a figure of speech describing the people’s urge to assert their sovereignty on earth. Ed.] (4) ומגדל וראשו בשמים, clearly this is a figure of speech, no one having been foolish enough to believe that it was possible to build such a structure.
(א) כל הפרשה כולה קשה: (א) לא נאמר כלל, למה נסעו ממקומם קדמה. (ב) לשם מה צריכים ללבנים (ומה עניין יש בפרטים על חומרי הבנייה). (ג) למה בקשו להישאר יחדיו ומה רע בזה. (ד) ולא פחות תמוה אפוא, למה הטריח ה' לרדת לראתם מקרוב. (ה) ניתן להסיק שבהתקבצות זו למקום אחד יש משום שלילה, בלא שיבואר אופיה של שלילה זו.
The whole affair is difficult: (1) It is not said at all, why they traveled from their place of progress. (2) What [are bricks] needed for (and what interest there is in the details of the building materials)? (3) Why did they ask to stay together and what's wrong with it ?(4) And no less puzzling, then, why did God bother to come down to see them up close? (5) It can be concluded that in this gathering in one place there is negativity, without explaining the nature of this negativity.
https://www.myjewishlearning.com/2014/10/23/a-call-for-diversity-the-tower-of-babel/
In the words of Rabbi Samson Raphael Hirsch (Germany, 19th century), “Mankind must be scattered, must distribute itself among all the different regions of earth in order that the most divergent and contrary faculties of the human mind may find in nature the needed opportunities of development, in order that experience become full and complete…” We learn here that the Torah does not only welcome diversity, but insists on it. Though we may have been scattered to the far ends of the earth, our ability to create our own borders, languages, and theological premises, has been the gift that allowed for civilization to thrive economically, culturally, and intellectually from Noah until now.
(ט) וכן אתה מוצא באנשי המגדל, שלא מרדו בהקב"ה אלא מתוך שביעה; שנא' (בראשית י״א:א׳-ב׳) ויהי כל הארץ שפה אחת ודברים אחדים, ויהי בנסעם מקדם וימצאו בקעה בארץ שנער וישבו שם. ואין ישיבה האמורה כאן אלא אכילה ושתייה, שנ' (שמות לב) וישב העם לאכול ושתה ויקומו לצחק - היא גרמה להם, שאמרו הבה נבנה לנו עיר ומגדל וראשו בשמים ונעשה לנו שם. מה נאמר בהם? (בראשית י״א:ד׳) ויפץ ה' אותם משם על פני האדמה.
(9) And thus do you find with the men of the tower (of Bavel), that they rebelled against the Holy One Blessed be He only out of satiety, as it is written (Ibid. 11:1-2) "And the whole earth was of one language and of one speech. And it came to pass, as they journeyed from the east, that they found a plain in the land of Shinar, and they sat there." The "sitting" here refers to eating and drinking, as in (Shemoth 32:6) "And the people sat down to eat and drink, and they arose to 'play.'" This is what caused them to say (Bereshith, Ibid. 4) "Come, let us build for ourselves a city and a tower with its top in heaven, and let us make a name for ourselves." What is said of them? (Ibid. 8) "And the L-rd scattered them from there over the face of all the earth."

