Redeeming the Firstborn with Commodities or Cash

The Torah sets the price to redeem a firstborn son at five silver shekels. The Talmud investigates whether a father must pay with coins or whether other valuables qualify.

וּפְדוּיָו֙ מִבֶּן־חֹ֣דֶשׁ תִּפְדֶּ֔ה בְּעֶ֨רְכְּךָ֔ כֶּ֛סֶף חֲמֵ֥שֶׁת שְׁקָלִ֖ים בְּשֶׁ֣קֶל הַקֹּ֑דֶשׁ עֶשְׂרִ֥ים גֵּרָ֖ה הֽוּא׃

Take as their redemption price,gtheir redemption price I.e., for human first-born; cf. 3.44ff. For animals, see Exod. 34.19–20. from the age of one month up, the money equivalent of five shekels by the sanctuary weight, which is twenty gerahs. (Numbers 18:16)

The Torah's Command to Redeem Sons

In Parashat Korach, the Torah presents the priestly gifts. God instructs Aaron that every firstborn male belongs to the priest, but a father must redeem his human child.

The verse specifies the timing and the cost: redemption takes place from one month of age for five silver shekels. Ibn Ezra clarifies that this instruction refers exclusively to human children. On a plain level, the verse requires five silver shekel coins.

Yet the Sages must clarify what medium of exchange satisfies this obligation. Can a father use commodities of equal value, or must he deliver literal silver coins?

וּפְדוּיָו֙ מִבֶּן־חֹ֣דֶשׁ תִּפְדֶּ֔ה בְּעֶ֨רְכְּךָ֔ כֶּ֛סֶף חֲמֵ֥שֶׁת שְׁקָלִ֖ים בְּשֶׁ֣קֶל הַקֹּ֑דֶשׁ

Take as their redemption price, from the age of one month up, the money equivalent of five shekels by the sanctuary weight. (Numbers 18:16)

The Tannaitic Dispute over Valid Assets

The Mishnah rules that a father cannot redeem his firstborn with Canaanite slaves, promissory notes, real estate, or consecrated property. By exclusion, ordinary movable property of equal value is valid.

However, the Gemara notes that Rabbi Yehuda HaNasi disputes this list. In a baraita, he rules that a father may redeem a firstborn with anything worth five shekels except promissory notes.

Rabbi Yehuda HaNasi allows slaves and land, whereas the anonymous Rabbis in the Mishnah exclude them. The Gemara asks what textual reasoning leads to such broad inclusion in his view.

Amplifications and Restrictions

The Gemara explains that Rabbi Yehuda HaNasi reads the verse through רִיבּוּיֵי וּמִיעוּטֵי (amplifications and restrictions). The opening words 'and its redemption from one month' amplify the scope of acceptable items.

The phrase 'according to the valuation of five silver shekels' restricts the category to silver coins alone. Rashi explains this restriction intimates silver and nothing else. Then the Torah repeats 'you shall redeem', creating another amplification.

Under this hermeneutical rule, an amplification followed by a restriction and another amplification includes nearly everything. The verse therefore amplifies to include almost everything, excluding only promissory notes.

דָּרֵישׁ רִיבּוּיֵי וּמִיעוּטֵי, ״וּפְדוּיָו מִבֶּן חֹדֶשׁ תִּפְדֶּה״ — רִיבָּה, ״בְּעֶרְכְּךָ כֶּסֶף חֲמֵשֶׁת שְׁקָלִים״ — מִיעֵט, ״תִּפְדֶּה״ — רִיבָּה.

He expounds using amplifications and restrictions: 'And its redemption from one month' amplified; 'according to the valuation of five silver shekels' restricted; 'you shall redeem' amplified. (Bekhorot 51a:10)

The Sages Read Generalization and Detail

The Rabbis read the very same phrasing using the method of כְּלָל וּפְרָט (generalization and detail). 'And its redemption' is a generalization, 'five silver shekels' is a specific detail, and 'you shall redeem' is an overarching generalization.

When a verse presents a generalization, a detail, and a generalization, it includes only items similar to the detail. The detail, silver coin, is movable and possesses intrinsic value.

Consequently, the rule includes any item that is movable with intrinsic value. This excludes land, excludes slaves who are compared to land, and excludes promissory notes because parchment has no intrinsic value.

מָה הַפְּרָט מְפוֹרָשׁ — דָּבָר הַמִּטַּלְטֵל וְגוּפוֹ מָמוֹן, אַף כׇּל דָּבָר הַמִּטַּלְטֵל וְגוּפוֹ מָמוֹן. יָצְאוּ קַרְקָעוֹת — שֶׁאֵין מִטַּלְטְלִין, יָצְאוּ עֲבָדִים — שֶׁהוּקְּשׁוּ לְקַרְקָעוֹת, יָצְאוּ שְׁטָרוֹת — שֶׁאַף עַל פִּי שֶׁמִּטַּלְטְלִין, אֵין גּוּפָן מָמוֹן.

Just as the detail is explicitly something that is movable and has intrinsic monetary value, so too anything movable with intrinsic monetary value is included. This excludes land, slaves, and promissory notes. (Bekhorot 51a:13)

Reconciling the Biblical Syntax

The Gemara challenges both readings based on biblical word order. In the verse, the general words appear side by side before the detail of silver shekels.

Rabbi Yehuda HaNasi follows the school of Rabbi Yishmael. When two general terms appear together before a detail, the passage must be expounded as an amplification and a restriction.

The Rabbis resolve the order using a rule from Eretz Yisrael. Where two generalizations appear adjacent, one mentally inserts the detail between them and expounds them as a generalization and detail followed by a generalization.

כׇּל מָקוֹם שֶׁאַתָּה מוֹצֵא שְׁתֵּי כְלָלוֹת הַסְּמוּכִים זֶה לָזֶה — הַטֵּל פְּרָט בֵּינֵיהֶם, וְדוּנֵם בִּכְלָל וּפְרָט.

Wherever you find two generalizations juxtaposed to each other, place the detail between them, and expound them as a generalization and a detail. (Bekhorot 51a:19)

By reading the verse as a generalization, detail, and generalization, the Sages derive that a firstborn son may be redeemed with any movable property possessing intrinsic value.

Learn Bekhorot 51 on Super Daf