Vow Versus Freewill Offering

בפסוק מוצא שפתיך ת' כבר כ' במ"א כי הוא לכלל ישראל לשמור כח הפה שזכו בנ"י בקבלת התורה ואשים דברי בפיך

On the verse "That which has gone out of your lips you shall keep" (Devarim 23:24), I have already written elsewhere that this is addressed to the entirety of Bnei Yisrael, to guard the power of speech that Bnei Yisrael merited through receiving the Torah, as it says, "And I have placed My words in your mouth" (Yeshayahu 51:16).

The Sfas Emes opens with the command to keep the words of one's mouth, explaining that it is directed to all of Bnei Yisrael to safeguard the holy power of speech they were granted at Matan Torah.

וכפי השמירה זוכין למ"ע ול"ת ועשית כאשר נדרת שאמרת א' דיבר ה' נעשה נדבה אשר דברת הוא הקדמת נעשה לנשמע

And according to the measure of this guarding, one merits to fulfill both the positive commandments and the negative commandments — "and you shall do as you have vowed" corresponds to the positive commandments that flow from "a vow" (neder), in the sense of accepting an obligation upon oneself, while "a freewill offering, as you have spoken" (nedavah) is the placing of "we will do" (na'aseh) before "we will hear" (nishma), as Bnei Yisrael declared at Sinai, "All that Hashem has spoken we will do."

The degree to which one guards his speech determines his fulfillment of both positive and negative mitzvos, with the vow corresponding to one mode of service and the freewill offering corresponding to the declaration of na'aseh before nishma.

דנדר הוא הרי עלי והוא בחי' עבודה מיראה כדאיתא דנודרין בעת צרה ומקבל עליו עלי מנח אכתפי' כדאיתא בגמ'

For a vow (neder) is expressed as "It is incumbent upon me," and this is the aspect of avodah out of yiras Shamayim — fear — as the Gemara teaches that people make vows in a time of distress, and one takes upon himself the yoke, as it were placing it upon his shoulders, as is found in the Gemara.

A neder, framed as "it is incumbent upon me," reflects avodah rooted in fear — the kind of commitment people make under pressure, accepting the yoke upon their shoulders.

אבל נדבה היא הרי זו והיא בחי' אהבה ואחדות שמרגיש כח אלקית ודביקות בנדבת לבו ובאמת זה מיוחד רק לבנ"י בכח התורה כמ"ש בפיך וכ' ואשים דברי בפיך

But a freewill offering (nedavah) is expressed as "This is set apart," and it is the aspect of love and of unity, where a person feels the Divine power and dveikus within the generosity of his heart; and in truth this is unique to Bnei Yisrael alone through the power of the Torah, as it says "in your mouth," and as it is written, "And I have placed My words in your mouth" (Yeshayahu 51:16).

A nedavah, framed as "this is set apart," reflects avodah rooted in love and unity, where a person senses Hashem's Divine power within his own generous heart — a level unique to Bnei Yisrael through the Torah.

וכ' עם זו יצרתי לי כו'

And it is written, "This nation I have fashioned for Myself, that they should declare My praise" (Yeshayahu 43:21).

He brings the verse that Hashem fashioned this nation specifically for Himself, underscoring that this loving, Divine connection belongs uniquely to Bnei Yisrael.

ואיתא ויפתוהו בפיהם באמרם נעשה ונשמע ואין זה דבר קטן לפתות הבורא ית"ש והיא שהרגישו וקיבלו כח אלקי בהקדימם נעשה לנשמע ולפי שנתדבקו באחדות האמת נשאר להם רשימה קבוע לעולם כדאיתא נדבה הרי זו מתה או נאבדה אין חייב באחריותו ולכן אפי' שאבדנו נעשה אעפ"כ שמירה היא לנו בכל עת ששבין בתשובה

And it is brought down on the verse "They enticed Him with their mouths" (Tehillim 78:36) that this refers to their saying "we will do and we will hear," and it is no small thing to entice the Creator, blessed be His Name; rather it means that they felt and received the Divine power through their placing "we will do" before "we will hear," and because they cleaved to the true unity, a permanent impression remained with them forever — as is taught that with a freewill offering (nedavah), if the animal died or was lost, one is not obligated to replace it; and therefore, even though we have lost "na'aseh," nonetheless it remains a guard for us at every time that we return in teshuvah.

He explains that "na'aseh v'nishma" was so powerful it is described as "enticing" Hashem; because Bnei Yisrael cleaved to true unity, a permanent imprint remained, and like a lost nedavah that need not be replaced, even when we lose that level of na'aseh it still protects us whenever we do teshuvah.

וזה כל ענין ההפרש בין נדר שמקבל עליו ולכן כ' בזה אל תאחר כמ"ש תוחלת ממשכה מ' לב

And this is the entire matter of the distinction between a vow (neder), where one accepts an obligation upon himself — and therefore concerning it the Torah writes "do not delay" (Devarim 23:22), as it says, "Hope deferred makes the heart sick" (Mishlei 13:12).

The core distinction is that a neder is an obligation one takes on, which is why the Torah warns not to delay it, since unfulfilled commitments leave the heart sick.

וע"ח תאוה באה מה שמקבלין בכח התורה ומרגיש בו חיות אלקות זה בחי' הרי זו

And the Tree of Life (Eitz Chaim) is a desire fulfilled — that which is received through the power of the Torah, in which one feels the vitality of Hashem's Divinity; this is the aspect of "This is set apart" (the nedavah).

The "Tree of Life," a fulfilled desire, is what one receives through the Torah — feeling Hashem's living Divinity within — and this corresponds to the freely-given nedavah.

ואין בו תערובת פסולת

And in it there is no admixture of any defect or invalidity.

Unlike a neder driven by fear and pressure, this nedavah of love is pure, with no admixture of any flaw.

ודו"ק:

And let one examine this well.

He closes by inviting the reader to study the point carefully.

Summary: The Sfas Emes builds his piece around the distinction between two forms of avodah, drawn from the two types of offerings: a neder (vow) and a nedavah (freewill offering). A neder, "it is incumbent upon me," is service rooted in yiras Shamayim — accepting the yoke under pressure, an obligation the Torah warns not to delay lest the heart grow sick from hope deferred. A nedavah, "this is set apart," is service rooted in love and unity, where a person feels Hashem's Divine power and dveikus welling up within his own generous heart — the level Bnei Yisrael reached when they placed na'aseh before nishma at Sinai. Because they cleaved to the true unity, that moment left a permanent imprint, and just as a lost nedavah need not be replaced, even after we lose that pristine level of na'aseh it continues to guard us whenever we return in teshuvah. This freely-given service is the "Tree of Life," a fulfilled desire flowing from the Torah, pure and untainted by any defect.