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Numbers 18:17 - Firstborn offerings: why no redemption?

Numbers 18:17 - במדבר 18:17

Hebrew Text

אַךְ בְּכוֹר־שׁוֹר אוֹ־בְכוֹר כֶּשֶׂב אוֹ־בְכוֹר עֵז לֹא תִפְדֶּה קֹדֶשׁ הֵם אֶת־דָּמָם תִּזְרֹק עַל־הַמִּזְבֵּחַ וְאֶת־חֶלְבָּם תַּקְטִיר אִשֶּׁה לְרֵיחַ נִיחֹחַ לַיהוָה׃

English Translation

But the firstling of an ox, or the firstling of a sheep, or the firstling of a goat, thou shalt not redeem; they are holy: thou shalt sprinkle their blood upon the altar, and shalt burn their fat for an offering made by fire, for a sweet savour to the Lord.

Transliteration

Ach bechor-shor o-vechor kesev o-vechor ez lo tifde kodesh hem et-damam tizrok al-hamizbe'ach ve'et-chel'bam taktir ishe l'rei'ach nicho'ach la'Hashem.

Hebrew Leining Text

אַ֣ךְ בְּֽכוֹר־שׁ֡וֹר אֽוֹ־בְכ֨וֹר כֶּ֜שֶׂב אֽוֹ־בְכ֥וֹר עֵ֛ז לֹ֥א תִפְדֶּ֖ה קֹ֣דֶשׁ הֵ֑ם אֶת־דָּמָ֞ם תִּזְרֹ֤ק עַל־הַמִּזְבֵּ֙חַ֙ וְאֶת־חֶלְבָּ֣ם תַּקְטִ֔יר אִשֶּׁ֛ה לְרֵ֥יחַ נִיחֹ֖חַ לַֽיהֹוָֽה׃
אַ֣ךְ בְּֽכוֹר־שׁ֡וֹר אֽוֹ־בְכ֨וֹר כֶּ֜שֶׂב אֽוֹ־בְכ֥וֹר עֵ֛ז לֹ֥א תִפְדֶּ֖ה קֹ֣דֶשׁ הֵ֑ם אֶת־דָּמָ֞ם תִּזְרֹ֤ק עַל־הַמִּזְבֵּ֙חַ֙ וְאֶת־חֶלְבָּ֣ם תַּקְטִ֔יר אִשֶּׁ֛ה לְרֵ֥יחַ נִיחֹ֖חַ לַֽיהֹוָֽה׃

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Parasha Commentary

Overview of the Verse

The verse (Numbers 18:17) discusses the sanctity of firstborn animals—specifically oxen, sheep, and goats—and their designation as sacrifices to Hashem. Unlike other consecrated animals that may be redeemed, these firstborns must be offered on the altar, with their blood sprinkled and their fat burned as a pleasing aroma to Hashem.

Rashi's Commentary

Rashi explains that the phrase "לֹא תִפְדֶּה" ("you shall not redeem") means these firstborn animals cannot be exchanged for money or another animal. Their inherent holiness requires them to be brought as sacrifices. Rashi further notes that the blood and fat are specifically mentioned because these are the primary components of a korban (offering) that achieve atonement and divine favor.

Rambam's Perspective

In Hilchot Bikkurim (Laws of First Fruits), Rambam (Maimonides) elaborates that the sanctity of firstborn animals stems from their status as bekhorim (firstborns), which are inherently set aside for Hashem since the Exodus (Exodus 13:2). Their sacrifice reaffirms the Jewish people's dedication to divine service, mirroring the dedication of the firstborns spared in Egypt.

Talmudic and Midrashic Insights

  • Zevachim 10a: The Talmud discusses the precise manner of sprinkling the blood, emphasizing that it must be done in accordance with the detailed laws of sacrifices to maintain the offering's validity.
  • Midrash Tanchuma (Korach 12): The Midrash connects this verse to the broader theme of kedushah (holiness), teaching that just as the firstborns are wholly dedicated to Hashem, so too must the Jewish people strive for complete spiritual devotion.

Halachic Implications

This verse establishes a permanent halachic principle: firstborn kosher animals (oxen, sheep, goats) are kodesh (holy) and must be given to the kohanim (priests) for sacrifice. The prohibition against redemption underscores their unique status. The Shulchan Aruch (Yoreh De'ah 305) codifies these laws, detailing the procedures for handling firstborn animals to ensure their proper sanctity.

Symbolic Meaning

Chassidic commentators, such as the Sefat Emet, interpret the firstborn's sanctity as a reminder that the "first" and best of our possessions—whether material or spiritual—should be devoted to divine service. The "sweet savor" represents the ideal of elevating the physical (the animal's blood and fat) into a spiritual offering.

📚 Talmud Citations

This verse is quoted in the Talmud.

📖 Bekhorot 13b
The verse is discussed in the context of the laws regarding the redemption of firstborn animals, emphasizing that certain firstborn animals cannot be redeemed because they are holy and must be sacrificed.
📖 Zevachim 10a
The verse is referenced in a discussion about the proper procedures for sacrificing firstborn animals, particularly the sprinkling of blood and burning of fat on the altar.

Frequently Asked Questions

Q: What does Numbers 18:17 mean when it says not to redeem the firstborn animals?
A: Numbers 18:17 teaches that certain firstborn animals (ox, sheep, goat) are inherently holy (קֹדֶשׁ) and must be given to the Kohanim (priests) for sacrificial service in the Mishkan (Tabernacle) or later the Beit HaMikdash (Temple). Unlike other sanctified items that can be 'redeemed' (exchanged for money), these animals must be offered as sacrifices. Rashi explains this emphasizes their special status as belonging to Hashem.
Q: Why are only the blood and fat of the firstborn animals mentioned in this verse?
A: The verse highlights the blood and fat because these were central parts of the sacrificial service. The blood was sprinkled on the altar (as with many sacrifices), and the fat was burned as an 'ishsheh' (fire-offering), creating a 'pleasant aroma to Hashem.' The Talmud (Zevachim) explains these actions atone and create a connection between the Jewish people and Hashem. The Rambam (Hilchot Ma'aseh HaKorbanot) details the precise procedures for these offerings.
Q: Do the laws of firstborn animals apply today without the Temple?
A: While the Torah obligation remains, today—without the Beit HaMikdash—we cannot sacrifice firstborn animals. However, the halacha (Shulchan Aruch, Yoreh De'ah 305) states that a kosher firstborn male animal (without blemish) must still be given to a Kohen, who must care for it until it develops a disqualifying blemish, at which point it may be slaughtered and eaten (with portions given to the Kohen). This maintains awareness of the original sanctity of bechorot (firstborns).
Q: What is the significance of the 'pleasant aroma' in Numbers 18:17?
A: The phrase 'רֵיחַ נִיחֹחַ' (pleasant aroma) symbolizes Divine acceptance of the sacrifice. The Midrash (Vayikra Rabbah) explains it represents the Jewish people's sincere devotion in fulfilling Hashem's commandments. On a deeper level, the Sforno notes that the 'aroma' reflects the spiritual elevation achieved through surrendering something valuable (like a firstborn animal) to Hashem.
Q: How does this verse connect to the role of the Kohanim (priests)?
A: This verse appears in Parshat Korach (Numbers 18), which outlines the duties and privileges of the Kohanim and Levi'im. Here, Hashem designates firstborn animals as part of the Kohanim's portion for their Temple service. Rashi emphasizes that this supports the Kohanim materially so they can focus on spiritual leadership. The Rambam (Hilchot Bikkurim 1:2) ties this to the broader concept that firstborns—both human and animal—were originally sanctified after the Exodus, later formalized in the Torah.