Blemishes are incidental, not essential

במדרש וישלחו מן המחנה כו'.

In the Midrash: "And they shall send out from the camp [every leper, every zav...]" (Bamidbar 5:2).

The Sefas Emes opens with the parsha's command to send the ritually impure out of the camp, and the Midrash that explains it.

כשקבלו בנ"י התורה נתרפאו מכל המומין וע"י החטא חזרו להיות מצורעין וזבין ולכן צוה להפריש מהם הטמאים ע"ש שמביא הפסוק כל המחלה כו' לא אשים עליך כו'.

When Bnei Yisrael received the Torah, they were healed of all blemishes; and through the sin [of the Golden Calf] they reverted to being lepers and zavim. Therefore He commanded to separate the impure from among them — see there, that it cites the pasuk, "all the sickness... I will not place upon you" (Shemos 15:26).

At Mattan Torah, Bnei Yisrael were completely healed of every physical and spiritual defect. The sin of the Eigel reintroduced impurity, which is why the impure now had to be sent out. The Midrash links this to Hashem's promise, "all the sickness... I will not place upon you."

הענין הוא שהתורה דכתיב בה תורת ה' תמימה וניתנה לבנ"י הוא עדות שנפשות בנ"י הם תמימים כמ"ש תמימים ינחלו טוב לכן הוסר כל מום מנפשות בנ"י בעצם.

The matter is that the Torah, of which it is written, "The Torah of Hashem is perfect (temimah)" (Tehillim 19:8), and which was given to Bnei Yisrael, is testimony that the souls of Bnei Yisrael are perfect (temimim), as it says, "the perfect (temimim) shall inherit good" (Mishlei 28:10). Therefore every blemish was removed from the souls of Bnei Yisrael in their very essence.

The fact that the perfect Torah was given specifically to Bnei Yisrael testifies that their souls are intrinsically perfect and unblemished. The very giving of the Torah proves and effects that, at their essence, the neshamos of Bnei Yisrael are free of all defect.

ולכן אע"פ שאחר החטא היו בהם מומין אבל הוא במקרה לא בעצם.

Therefore, even though after the sin there were blemishes in them, this was incidental (b'mikreh), not essential (b'etzem).

The crucial point: any blemish that comes after sin is only "accidental," a surface condition — it never touches the essential perfection of the Jewish soul.

ז"ש אם שמוע תשמע לקול כו' כל המחלה כו' לא אשים. פי' שאין המחלה יכולה לידבק בהם בעצם כי רחוקים הם מהמומין.

This is the meaning of, "If you will surely hearken to the voice [of Hashem]... all the sickness... I will not place [upon you]" — meaning that the sickness cannot cling to them essentially, for they are intrinsically far from blemishes.

"I will not place the sickness upon you" means the illness can never fuse with their essence; it can only rest upon the surface, because in their core Bnei Yisrael are utterly removed from all defect.

ז"ש כל המחלה ולשון אשים.

This is the meaning of "all the sickness" and the expression "I will place (asim)."

The Sefas Emes notes the precise wording: the sickness is something merely "placed" upon them from outside — a layer set on top — never something rooted within.

והטעם כי אני ה' רופאך. ורפואת ה' הוא בעצם לא במקרה. והבן.

And the reason is, "for I am Hashem your Healer" (Shemos 15:26). And Hashem's healing is essential, not incidental. Understand this.

Because "I am Hashem your Healer," the healing reaches the essence — restoring the soul's intrinsic perfection — whereas the sickness was only ever incidental. Hashem's cure is deeper than the disease.

לכן כתיב וישלחו שבנ"י יכולין ליפשט עצמותם מהמומין.

Therefore it is written, "and they shall send out" — for Bnei Yisrael are able to strip their essence free of the blemishes.

"And they shall send out" expresses that Bnei Yisrael have the power to cast off these surface blemishes and reveal their essential, unblemished soul.

ובזה פרשנו המדרש בפרשת מצורע נכונו ללצים שפטים כששמעו בנ"י פרשת נגעים נתייראו א"ל הקב"ה אתם לאכול ולשתות ע"ש המשל.

And with this we explained the Midrash on parshas Metzora: "Judgments are prepared for scoffers" (Mishlei 19:29) — when Bnei Yisrael heard the parsha of the nega'im (afflictions) they became afraid; Hashem said to them, "You are [to be occupied] with eating and drinking" — see there, the parable.

The Midrash relates that Bnei Yisrael feared the laws of tzara'as, but Hashem reassured them that these afflictions were "prepared for scoffers," not for them — they need only attend to their celebrations.

ותמהו כל המפרשים הלא פ' נגעים לישראל נאמרה.

And all the commentators wondered: surely the parsha of the nega'im was said to Yisrael!

The commentators are puzzled: if the afflictions are "for scoffers," why was the whole parsha of nega'im addressed to Bnei Yisrael themselves?

אך הפי' כי הנגעים נכונים ללצים וכמ"ש במצרים המחלה אשר שמתי.

But the explanation is that the nega'im are [essentially] "prepared for scoffers," as it says regarding Mitzrayim, "the sickness which I placed [upon Egypt]."

The afflictions belong essentially to the wicked, like the plagues "placed" upon Mitzrayim. For them, the sickness is intrinsic.

אבל לבנ"י ניתן פרשת נגעים איך להתרפאות מהם כי הם רחוקים בעצם מהנגעים.

But to Bnei Yisrael the parsha of nega'im was given [to teach] how to be healed from them, for they are intrinsically far from the afflictions.

The resolution: for Bnei Yisrael, the parsha of nega'im is not a sentence of affliction but a manual of healing — precisely because their essence is untouched by such defects, the Torah teaches them how to remove what is only superficial.

ולכן ניתן להם דרך טהרת הנגעים:

Therefore the way of purification from the nega'im was given to them.

That is why the Torah provides Bnei Yisrael with a process of taharah — a path to purify and restore the soul's essential, unblemished state.

Summary: At Mattan Torah, Bnei Yisrael were healed of every blemish, because the giving of the perfect Torah testifies that their souls are intrinsically perfect. After the sin of the Eigel, blemishes returned — but only "incidentally," on the surface, never touching the essence of the Jewish soul. Since "I am Hashem your Healer," Hashem's healing reaches the essence, while sickness is merely "placed" externally and can be stripped away. This is why the impure are "sent out" of the camp, and why the parsha of nega'im, though addressed to Yisrael, is really a guide to healing and purification — for Bnei Yisrael are essentially far removed from all affliction.