Sanctity, Sales, and Sellers on Bekhorot 21

Tosafot clarifies when young animals become consecrated, how blemished tithes are consumed, and why commercial motives defeat credibility.

Sanctifying Animals Under Eight Days Old

The Torah requires an animal offering to be at least eight days old to be accepted on the altar. Rabbi Shimon rules that an animal under eight days old, termed a mechusar zeman, may still enter the pen to be counted for animal tithe, ma'aser behemah. Because a firstborn animal is holy from birth, Rabbi Shimon compares animal tithe to a firstborn, arguing that both can contract sanctity before they are fit for the altar.

This ruling creates a difficulty for Tosafot. In tractate Temurah 19b, Rabbi Shimon is quoted as stating broadly that an animal whose time has not arrived can become holy, which implies that this rule applies to all sacrifices. Tosafot resolves this by explaining that Rabbi Shimon's statement applies specifically to animal tithe. Regarding all other consecrated offerings, even Rabbi Shimon agrees that an animal under eight days old cannot become consecrated at all.

היינו במעשר בהמה כדמוכח הכא דפליגי ר' שמעון ורבנן אבל בשאר קדשים מודה אפילו ר' שמעון

That refers specifically to animal tithe, as is proven here that Rabbi Shimon and the Rabbis disagree; but regarding other consecrated offerings, even Rabbi Shimon agrees. (Tosafot on Bekhorot 21b:1:1)

Defining the Shared Feature of Eating

The Gemara asks why Rabbi Shimon derives animal tithe from a firstborn rather than from standard consecrated animals, which cannot be sanctified before eight days. The Gemara responds that a firstborn and tithe share four distinct traits: redeemer, blemish, substitute, and eating.

Rashi explains that "eating" means both animals may be eaten once blemished without requiring monetary redemption. Tosafot questions this reading, noting that freedom from redemption is already identical to the first listed commonality, "redeemer". Why would the Gemara list the very same halakhic feature twice under two different names?

פירש בקונט' שנאכלין במומן בלא פדיון וקצת קשה הא מכלל גואל הוא ונראה לפרש דמשונה אכילתה משאר פסולי המוקדשין

Rashi explained that they are eaten in their blemished state without redemption. But this is somewhat difficult, for this is already subsumed under 'redeemer'! Therefore it seems correct to explain that their manner of eating differs from other disqualified consecrated offerings. (Tosafot on Bekhorot 21b:2:2)

Butcher Shops and Sacred Meat

To resolve this redundancy, Tosafot reinterprets "eating" to denote special sales restrictions on meat. Other disqualified offerings that are redeemed may be sold in an ordinary market, but a blemished firstborn and animal tithe remain subject to strict biblical limitations.

Specifically, their meat may not be slaughtered in a commercial butcher shop, sold in a butcher shop, or weighed by the pound. This unique manner of distribution ensures that even when eaten outside the Temple, these animals retain public reverence and are not treated like ordinary livestock.

Commercial Motives and Casual Testimony

Later on the daf, the Gemara examines a person who buys an animal from a Jewish seller without knowing whether it previously gave birth. Rav rules that any subsequent offspring is definitely a firstborn. His reasoning is that had the mother already calved, the seller would have boasted about this fact to entice the buyer.

Tosafot contrasts this with an earlier rule that a gentile seller's claim that an animal gave birth is disregarded. Under Jewish law, a gentile can normally be believed when speaking casually, a principle called mesi'ach lefi tumo. Here, however, because the gentile intends to enhance his sale, his statement is motivated by financial profit, stripping him of any presumption of innocent storytelling.

ויש ללמוד מפירושו דעובד כוכבים אפילו מסיח לפי תומו אינו נאמן דלהשביח מקחו אומר כן

And one can learn from his explanation that a gentile, even when speaking innocently, is not believed, since he says this in order to enhance his sale. (Tosafot on Bekhorot 21b:6:1)

Commercial interest invalidates casual claims of exemption, just as sacred status preserves marketing restrictions on consecrated meat.

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