B"H, Shabbos Parshas Haazinu, Shabbos Teshuvah, 5736.
Shuvah Yisrael Ad Havayah Elokecha Ki Kashalta BeAvonecha, Kechu Imachem Devarim etc. Imru Elav Kol Tisa Avon etc. U'neshalmah Parim Sefaseinu ("Return, O Israel, to the L‑rd your G‑d, for you have stumbled in your iniquity. Take words with you etc. Say to Him: Forgive all iniquity etc. We will offer the words of our lips instead of bulls").
The verse "Shuvah Yisrael..." is discussed at length by our Rebbeim, who note that since the topic is teshuvah (return), it would seem more fitting to say "Shuvah Yaakov" rather than "Shuvah Yisrael," as "Yisrael" represents a higher spiritual level. "Yisrael" refers to "for you have struggled with G‑d and with men and prevailed," while "Yaakov" is related to the heel, and specifically to the heel of Esav. Thus, why does the verse use "Yisrael"? Especially since it continues, "for you have stumbled in your iniquity," referring to deliberate sins, and even unintentional sins are not associated with the level of Yisrael. Why, then, does it say "Shuvah Yisrael"? Additionally, what is added by the phrase "Take words with you"? Since teshuvah includes confession, why is this emphasized separately? And after teshuvah, why is it necessary to say "Forgive all iniquity"? Furthermore, why does the verse enumerate several stages, culminating in "We will offer the words of our lips"—which is only a substitute for sacrifices, not the sacrifices themselves?
The concept is as follows: The essence of teshuvah is a leap—a movement beyond order and progression. This is why teshuvah can happen in a single moment, unlike other spiritual advancements that require time, especially the loftier ones. Teshuvah, though a lofty concept, is achieved instantly, because it is performed with extraordinary strength, in a manner of leaping beyond progression. This leap is not just an incomparable ascent within holiness, but a leap from one extreme to another—from the lowest depths to the highest heights. In particular, teshuvah from love transforms deliberate sins into merits, and these merits are even greater than those of the righteous.
2) The Alter Rebbe explains the saying, "The purpose of wisdom is teshuvah and good deeds." Teshuvah is mentioned before good deeds because it causes one's deeds to be truly good and radiant. Since teshuvah is a leap beyond progression, it influences all aspects of Torah and mitzvos, even the service of "all your deeds should be for the sake of Heaven," elevating them beyond order and measure. As explained in the Maamarim, Torah study must be preceded by humility, as in "Let my soul be as dust to all; open my heart to Your Torah." Even within Torah study, each level must be preceded by nullifying the previous one. Similarly, mitzvah observance must include an aspect that transcends limitation, as in "You shall love the L‑rd your G‑d with all your heart, soul, and might"—the love of "might" being beyond measure. This is far beyond ordinary mitzvah observance, for in "might" one fulfills the Divine will itself. This quality must extend to all one's actions, even in the realm of material possessions, so that all is done with a love that transcends limitation. However, the leap in Torah and mitzvos is an incomparable ascent within holiness, while in teshuvah, the leap is from one extreme to another, from the lowest to the highest.
The power for this kind of leap in teshuvah comes from the level of Yisrael. Although "Yisrael" means "My head" (li rosh), and the head is connected to the body and the heel, still, Yisrael is "My head"—it is nullified to Him, as in the meaning of "you have prevailed"—victory in battle. From this level comes the ability to leap beyond measure. This is why the verse says "Shuvah Yisrael"—the power to return comes specifically from the level of Yisrael. Since this level exists in every Jew, even one who has stumbled in sin, as our Sages say, "A Jew, even if he sins, remains a Jew," everyone has the power to do teshuvah. This essential level of Yisrael is the true self of every Jew and influences even the aspect of Yaakov. The verse continues, "for you have stumbled in your iniquity"—as our Rebbeim teach, just as one must know one's shortcomings, one must also know one's strengths. "You have stumbled" refers only to a misstep, like tripping over a stone, which affects the head, but the level of Yisrael remains whole. Nevertheless, teshuvah is required even for this, and because of one's lofty level, even a minor flaw is more significant than a major flaw at the level of Yaakov, as explained in Tanya regarding a stain on the garment of a Torah scholar and the impact of a mere thought.
The verse continues, "Take words with you," because to properly rectify the misstep, it is not enough to nullify one's ego through confession. The ultimate purpose of teshuvah is the service of Torah and mitzvos, as previously discussed. "Take words" refers to Torah and mitzvos, as explained in Likkutei Torah. These words must be measured and precise. In the Oral Torah, study must be with understanding, which requires measure, but even in the Written Torah, where comprehension is less central, precision is even more crucial—every letter, crown, and cantillation mark must be exact.
The verse then says, "Say to Him: Forgive all iniquity." The purpose of teshuvah is not only that sins be forgiven, but that deliberate sins be transformed into merits. This is why, even after "Shuvah Yisrael," we say "Forgive all iniquity." "Forgive" here means to lift up the sin, not just to cast it away, but to elevate and transform it into merit, as explained at length in Torah Or. This transformation is achieved by saying "to Him: all"—for He encompasses everything, and thus even sins are uplifted and transformed.
The verse continues, "We will offer the words of our lips," meaning that through complete teshuvah, one achieves perfection in the realm of sacrifices, even after stumbling in sin. "We will offer the words of our lips" does not only mean that our prayers substitute for sacrifices, but that our prayers bring perfection to the sacrifices themselves. Prayer is the spiritual equivalent of sacrifices and is even higher than the physical sacrifices. Even when the Temple stood and sacrifices were brought, the service of the Kohanim had to be "in silence and with the desire of the heart." Thus, "We will offer the words of our lips" comes after "Shuvah Yisrael," representing the elevation achieved through teshuvah, reaching ever higher, even beyond the sacrifices, up to the level of "the face of the L‑rd." As it says, "Seek My face; Your face, L‑rd, I will seek." Through seeking the Divine face—teshuvah—one reaches the highest level, which is not accessible through drawing down from above, but only through elevation from below.
Just as this applies to service, where Torah and mitzvos are generally within limitation but can be elevated through teshuvah, so too with reward. In Gan Eden, there are levels of progression, but even these are only a radiance and revelation. Ultimately, there will be a revelation of the Essence, which is beyond ascent and descent, the "day that is entirely Shabbos."
This is the meaning of "Shuvah Yisrael" recited in the Haftorah of Shabbos Teshuvah. The service of Shabbos Teshuvah repairs all the Shabbosos of the past year and affects all the Shabbosos of the coming year. As the Arizal explains, each day between Rosh Hashanah and Yom Kippur repairs its corresponding day in the previous year, and so too for the coming year. The mitzvah of teshuvah is to resolve not to return to sin, until, as Rambam writes, "He who knows the secrets of the heart testifies that he will never return to this sin." Just as there are many levels of awe of Heaven, all interconnected, so too with teshuvah—even the lowest level is connected to the highest, the return of the spirit to G‑d, as explained in Likkutei Torah. Thus, on Shabbos Teshuvah, we say "Shuvah Yisrael... We will offer the words of our lips," for through the teshuvah of Shabbos Teshuvah, which affects all the Shabbosos of the year, we reach the highest level, as Rambam writes: "Israel does teshuvah and is immediately redeemed, and the third Beis HaMikdash will be built, where we will offer our obligatory sacrifices as You desire," speedily in our days.
Summary
The Rebbe teaches that the power of teshuvah comes from the essential level of Yisrael within every Jew, enabling a leap from the lowest to the highest spiritual state. Through sincere return, even deliberate sins are transformed into merits, uplifting all aspects of Torah, mitzvos, and prayer.