The Medrash relates a conversation that transpired between the Malachim and Hakadosh Boruch Hu at the moment that Moshe Rabbeinu arrived Upstairs to receive the Torah.

באותה שעה בקשו מלאכי השרת לפגע במשה, עשה בו הקדוש ברוך הוא קלסטירין של פניו של משה דומה לאברהם, אמר להם הקדוש ברוך הוא אי אתם מתבישין הימנו לא זהו שירדתם אצלו ואכלתם בתוך ביתו, אמר הקדוש ברוך הוא למשה לא נתנה לך תורה אלא בזכות אברהם – At that moment, the Malachei Hashares sought to harm Moshe. Hakadosh Boruch Hu made the image of Moshe’s face similar to Avraham. Hakadosh Boruch Hu said to them: “Are you not ashamed before him? Is he not that one to whom you descended and ate in his house?” Hakadosh Boruch Hu said to Moshe: “The Torah was given to you only in the merit of Avraham.”

There are many explanations given for this Medrash. Simply understood, Hakadosh Boruch Hu was telling the Malachim that Avraham Avinu had hosted them, and therefore they owed him a debt of gratitude. Putting this into perspective for a moment, it emerges that the Malachim were expected to relinquish the Torah due to hakaras hatov. What an incredible insight into the extent of one’s obligation in matters of gratitude.

Another well-known explanation is that Avraham served them meat and milk together. Since Basar B’chalav is forbidden, Hakadosh Boruch Hu showed them the face of Avraham as if to remind them of that meal, thereby disqualifying them from holding onto the Torah. The B’er Hataiv (end of O.C. 494) writes:

ושמעתי שאוכלים חלב ואח"כ בשר דלא כמו שעשו המלאכים אצל אברהם שאכלו בשר בחלב שבעבור זה נתנה התורה לישראל ודו"ק

The minhag on Shavuos is to eat dairy and afterward meat, unlike the Malachim who consumed them together. It was for this reason that the Torah was given to Klal Yisroel and not to the Malachim.

The Beis HaLevi takes this even further. Every Yom Tov carries an obligation of simcha, אין שמחה אלא בבשר ויין, true simcha requires meat and wine. One may have thought that on Shavuos, after “flying high” through kabbolas haTorah, perhaps one should distance himself from physical pleasures altogether. Yet the gemara tells us that specifically regarding Shavuos, everyone agrees: בעינן נמי לכם, there must also be a physical component.

The Beis HaLevi explains that it was specifically through food that Klal Yisroel “won” the argument for the Torah. More specifically, through meat and milk together. Therefore, on Shavuos we eat dairy followed by meat to demonstrate that we are indeed the worthy recipients of the Torah, unlike the Malachim.

However, perhaps there is an even deeper understanding of the exchange between the Malachim and Hakadosh Boruch Hu.

The gemara in Bava Metzia (86b) states:

לעולם אל ישנה אדם מן המנהג שהרי משה עלה למרום ולא אכל לחם מלאכי השרת ירדו למטה ואכלו לחם, ואכלו סלקא דעתך אלא אימא נראה כמי שאכלו ושתו

A person should never deviate from the local custom. Moshe Rabbeinu ascended to Shomayim and did not eat, while the Malachim descended below and “ate.” But did they actually eat? Rather, they merely appeared as though they ate and drank so as not to deviate from the local custom.

But if the Malachim never actually ate anything, then what hakaras hatov did they owe Avraham at all?

The Emek Yehoshua brilliantly explains this through a gemara in Pesachim. Rabba bar bar Chana traveled from Eretz Yisroel to Bavel and ate from a part of the animal that was permissible in Eretz Yisroel but avoided in Bavel due to concerns of cheilev. The gemara asks: how could he do so? Do we not learn that one traveling from one place to another must observe the chumros of both places?

Abaye answers that this rule applies when traveling between places of equal standing, or from Bavel to Eretz Yisroel. But one who travels from Eretz Yisroel to Bavel is not bound by the chumros of Bavel, since Bavel is secondary to Eretz Yisroel.

The Emek Yehoshua explains with a simple mashal: when a person from a large city visits a village, he need not suddenly dress like a villager. But when the villager visits the large city, he must dress the part.

With this yesod, the conversation between the Malachim and Hakadosh Boruch Hu takes on an entirely different dimension.

The Malachim argued: why should the Torah be given to human beings down below? We are perfect spiritual beings who can preserve the Torah flawlessly. The Torah belongs in the Heavens.

To this, Hakadosh Boruch Hu responded from their own behavior. Why, when descending to Avraham’s home, did they adopt the local custom and appear to eat? According to Abaye, such conduct is unnecessary when traveling from a higher place to a lower one. If so, why did the Malachim feel compelled to follow the minhag hamakom?

It must be that when they entered the home of Avraham Avinu and witnessed the greatness that Man can achieve in this world, they recognized that this world is not merely a lower realm. They saw that the potential of אדם down below can reach even higher than the world above. And therefore, they accepted upon themselves the minhag hamakom.

Furthermore, everything that transpires in the upper worlds is generated from below. Torah learned and mitzvos performed by Man create immeasurable hashpa’os throughout all the olamos. And chas v’shalom, the opposite is true as well.

Therefore, Hakadosh Boruch Hu made Moshe resemble Avraham Avinu. The face of Avraham was itself the answer to the Malachim’s claim.

The seforim explain that the argument between Moshe and the Malachim centered around one question: where can the greatest kavod Shomayim emerge from?

The Malachim insisted that true perfection exists only in a world free of failure and temptation. But Moshe Rabbeinu argued that when a human being is surrounded by opportunities to sin, yet chooses the path of Torah, he elevates himself beyond the level of a Malach.

Just how high can a human being rise?

The gemara records that Moshe feared being consumed by the fiery breath of the Malachim. Hakadosh Boruch Hu therefore instructed him to grasp the kisei hakavod.

The seforim explain that Hakadosh Boruch Hu was showing Moshe that Man possesses the ability to reach all the way to the highest levels, even to the kisei hakavod itself.

And perhaps now we can understand an additional depth. The gemara tells us that teshuvah is so great that it reaches until the kisei hakavod.

The Malachim came with the claim that Man will fail, stumble, and destroy. To this came the response: it is true that Man can fall. But Man also possesses the ability to rise again. Not merely to recover, but to ascend all the way to the kisei hakavod itself.

That is the greatness of Mattan Torah. The Torah was not given to Malachim who cannot fall. It was given to Man, who falls, rises, struggles, chooses, and through that very struggle can reach the kisei hakavod itself.