Leviticus 15

Sugya Map

• Issue: The opening address "וַיְדַבֵּר יְהוָה אֶל-מֹשֶׁה וְאֶל-אַהֲרֹן" (Lev. 15:1) for tum'at zav/zavah, and the phrase "דַּבְּרוּ אֶל-בְּנֵי יִשְׂרָאֵל" (Lev. 15:2).
• Nafka Mina(s):
  • The specific role of the Kohen in the purification of zav/zavah.
  • The Kohen's expertise in distinguishing subtle tum'ah types (e.g., zavah vs. nidah).
  • The exclusion of akum (non-Jews) from tum'at zivah.
• Primary Sources: Vayikra 15:1-2; Ralbag, Vayikra 15:1:1; Reggio, Vayikra 15:1:1; Malbim, Metzora 118:1; Malbim, Ayelet HaShachar 260:1; Shabbat 83b; Niddah 34a.

Text Snapshot

"וַיְדַבֵּר יְהוָה אֶל-מֹשֶׁה וְאֶל-אַהֲרֹן לֵאמֹר: דַּבְּרוּ אֶל-בְּנֵי יִשְׂרָאֵל וַאֲמַרְתֶּם אֲלֵהֶם אִישׁ אִישׁ כִּי יִהְיֶה זָב מִבְּשָׂרוֹ זוֹבוֹ טֻמְאָתוֹ הִוא" (Vayikra 15:1-2). The dual address to Moshe and Aharon, followed by the specific instruction to "Speak to the Children of Israel," contains crucial halachic implications.

Readings

Ralbag's Chiddush

Ralbag notes Aharon's inclusion because "קצת אלו הטהרות תלויות בכהן" (some of these purifications are dependent on the Kohen), specifically citing the zav and zavah as requiring priestly involvement (Ralbag, Vayikra 15:1:1).

Reggio's Chiddush

Reggio complements this by explaining that "הכהנים יפרישו בין זבה לנדה" (the Kohanim differentiate between a zavah and a nidah), highlighting their role in discerning the nature of the tum'ah (Reggio, Vayikra 15:1:1).

Malbim's Chiddush

Malbim on "דַּבְּרוּ אֶל-בְּנֵי יִשְׂרָאֵל" states that this phrase "בא למעט ולהוציא עכו"ם שאין מטמאים בזיבה" (comes to exclude non-Jews, who do not contract tum'at zivah) (Malbim, Metzora 118:1; Ayelet HaShachar 260:1).

Friction

• Kushya: Why is Aharon explicitly mentioned here for tum'at zav/zavah, unlike tum'at met or sheretz?
• Terutz: While other tum'ot also involve Kohanim, zav/zavah uniquely entails both a direct priestly offering for atonement ("וכיפר עליו הכהן" - Lev. 15:15) and a nuanced discernment, particularly between zavah and nidah, which is a specific priestly task due to its internal and often ambiguous nature (Ralbag, Vayikra 15:1:1; Reggio, Vayikra 15:1:1).

Intertext

The interpretive principle that "דבר אל בני ישראל" excludes akum from specific mitzvot is well-established (Malbim, Ayelet HaShachar 260:1). This is applied to tum'at zivah, where akum are not subject to its tum'ah (Shabbat 83b; Niddah 34a).

Psak/Practice

The halachic implication is that an akum does not contract tum'at zivah. Consequently, their bodily emissions (e.g., k'ri) do not impart tum'ah to terumah or kodashim, a ruling echoed in the Gemara (Niddah 34a) and subsequent poskim (Rambam, MT Hilchot Metamei Mishkav u'Moshav 2:7).

Takeaway

The precise formulation of Divine speech, including the dual address to Moshe and Aharon and the specific audience, serves as a critical hermeneutic key, encoding specific halachic distinctions and defining the Kohen's unique agency and the very scope of the mitzvah.