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Sanctity Taking Effect on Mechusar Zeman
מחוסר זמן בקדושת הגוף
Can a newborn animal receive sacred status before it is old enough to be offered on the altar?
The Torah forbids offering any newborn animal upon the altar before its eighth day of life. Until that time, the animal is categorized as a mechusar zeman, meaning an animal lacking the required time.
The Gemara in Bekhorot 21a explores whether a goat and its young born on the last day of the year can be tithed together. Because the newborn is under eight days old, a question arises regarding whether animal tithe can take effect upon it.
Rabbi Shimon maintains that a mechusar zeman enters the pen to be tithed, comparing it to a firstborn animal. The Rabbis disagree and maintain that an animal under eight days cannot enter the tithing pen.
The question
Does an animal's temporary ineligibility for sacrifice prevent bodily sanctity from taking effect, or does sanctity apply even while the offering cannot yet be brought?
Through the sources
The Gemara (Gemara)
מָה בְּכוֹר קָדוֹשׁ לִפְנֵי זְמַנּוֹ וְקָרֵב לְאַחַר זְמַנּוֹRabbi Shimon teaches that a newborn animal enters the pen to be tithed. It is consecrated before its time and sacrificed once eight days have elapsed, mirroring the law of a firstborn.
The Gemara (Gemara)
וְאַדְּיָלֵיף מִבְּכוֹר, נֵילַיף מִקֳּדָשִׁיםThe Gemara challenges Rabbi Shimon's derivation. General sacrificial offerings cannot be consecrated before time, so animal tithe should logically follow general offerings rather than a firstborn.
Rashi (Rishonim)
משלמים שאין יכול להקדישן מחוסר זמן שאין קדושה חלה עליהןRashi explains the Gemara's assumption regarding general offerings. Under eight days, sanctity does not take effect at all upon an animal, as derived from Torat Kohanim.
Tosafot (Rishonim)
אבל בשאר קדשים מודה אפילו ר' שמעוןTosafot clarify that Rabbi Shimon's ruling applies strictly to animal tithe. Regarding standard sacrificial offerings, even Rabbi Shimon concedes that consecration is completely ineffective before the eighth day.
Tosafot on Zevachim (Rishonim)
דאסור להקדישם אבל אם הקדישם תוך זמנם קדושיןTosafot on Zevachim formulate an alternative mechanism. One violates a prohibition by consecrating early, but after the fact, they become holy bedi'avad.
Mareh HaPanim (Acharonim)
נקטינן לדעת הרמב"ם דאין קדושה חיילא כלל על מחוסר זמןThe Mareh HaPanim demonstrates that according to the Rambam, sanctity never takes effect on a mechusar zeman, comparing it to an animal with a temporary blemish.
Har HaMoriyah (Acharonim)
אבל לרש"י דכתב בהדיא בבכורות דבדיעבד לא קדושHar HaMoriyah contrasts the commentators. While Tosafot validate the sanctity ex post facto, Rashi and the Rambam hold that consecration fails entirely bedi'avad.
Ways to understand it
Absolute Inefficacy of Consecration
An animal under eight days completely lacks sacrificial readiness. Because it cannot be brought upon the altar, no bodily sanctity can attach to it even after the fact.
Prohibition with Ex Post Sanctity
The Torah's limitation from the eighth day is merely a command against initiating consecration. If one transgresses and dedicates the animal, potential fitness allows retroactive validity once the time arrives.
Unique Exception for Tithe
Rabbi Shimon derives ma'aser behema from a firstborn via a verbal analogy. Therefore, tithes receive sanctity ab initio before time, unlike ordinary sacrificial animals.
Where it lands
The normative halacha follows the first tanna against Rabbi Shimon. An animal under eight days old cannot enter the pen to be tithed. Furthermore, according to the Rambam and Rashi, dedicating a mechusar zeman as a standard offering fails to generate sanctity altogether.
An animal lacking sacrificial eligibility cannot absorb bodily sanctity, leaving its early dedication halachically inert.