Teshuvah without sin as return to root

אא"ז מו"ר זצלה"ה הגיד על מה שהי' מרע"ה מ' ימים שניים בהר.

My grandfather, my teacher and master (of blessed memory for the life of the World to Come), said regarding the fact that Moshe Rabbeinu was a second forty days on the mountain.

The Sefas Emes cites his grandfather, the Chiddushei HaRim, on the puzzle of Moshe Rabbeinu's second ascent of forty days on Har Sinai after the sin of the Golden Calf.

אף שכבר קיבל במ' ימים הראשונים.

Even though he had already received [the Torah] during the first forty days.

If Moshe had already received the Torah on his first ascent, what was the need for a second forty-day period of receiving?

ואמר שהוא כענין במקום שבע"ת עומדין אין צדיקים גמורים יכולין לעמוד.

And he said that it is like the matter of "In the place where baalei teshuvah stand, complete tzaddikim cannot stand" (Berachos 34b).

The second receiving was on a higher plane - the plane of teshuvah, which Chazal say reaches a level even perfect tzaddikim cannot attain.

ולכך הי' אח"כ קבלתו באופן אחר ממקודם.

Therefore his receiving afterward was of a different manner than before.

The second giving of the Torah, following the people's return through teshuvah, was qualitatively higher than the first.

עכ"ד.

Thus far his words.

Here ends the teaching of the Chiddushei HaRim, and the Sefas Emes proceeds to address a difficulty in it.

ואף כי מרע"ה לא חטא.

And although Moshe Rabbeinu did not sin -

A question arises: teshuvah implies a prior sin, yet Moshe himself did not sin with the Calf. How then does the level of baalei teshuvah apply to him?

ואיך קיבל בבחי' בע"ת.

how then did he receive in the aspect of a baal teshuvah?

If the second receiving belonged to the realm of teshuvah, how could Moshe, who needed no teshuvah, attain it?

אמת כי כלל ישראל נוגע למרע"ה ג"כ.

In truth, the entire community of Bnei Yisrael is bound up with Moshe Rabbeinu as well.

One answer: Moshe is the collective soul of all Bnei Yisrael, so their teshuvah is, in a sense, his own; their return elevates him too.

אך כי יכול להיות בחי' תשובה בלי חטא.

But [more deeply,] there can be an aspect of teshuvah without sin.

The Sefas Emes now offers his own insight: teshuvah is not essentially about undoing sin. There is a teshuvah that has nothing to do with wrongdoing at all.

והוא החזרת החיות לשורשו.

And it is the returning of the life-force to its root.

The essence of teshuvah is the return of the chiyus to its Source in Hashem - a movement of inner restoration available even to one who never sinned.

והוא בחי' פרה שהוא הביטול.

And this is the aspect of the [Red] Heifer (Parah), which is bittul (self-nullification).

The Parah Adumah, burned entirely to ash, embodies bittul - the dissolving of the self back into its source. This is the parsha's connection: teshuvah as total self-nullification before Hashem.

ונק' תשובה שחוזר החיות לכמו שהי' קודם שנשתלח בעוה"ז.

And it is called teshuvah (return), for the life-force returns to how it was before it was sent into this world.

This higher teshuvah restores the soul's life-force to the pristine state it had before descending into olam hazeh - a return to its original purity.

כמו כל תשובה על חטא. שחוזר לכמו שהי' קודם החטא:

Just like all teshuvah for sin, in which one returns to how he was before the sin.

Ordinary teshuvah restores a person to his pre-sin state; this loftier teshuvah, like Moshe's, restores the soul to its state before it ever entered the world - a return that even a perfect tzaddik can undergo.

Summary: Moshe Rabbeinu's second forty days received the Torah on the elevated plane of teshuvah, even though he did not sin, because the true essence of teshuvah is not the undoing of sin but the return of one's life-force to its root in Hashem - the bittul embodied by the Parah Adumah, restoring the soul to its purity from before it descended into this world.