Daily Mishnah · Expert – Beit Midrash Analysis · On-Ramp

Mishnah Bekhorot 5:4-5

On-RampExpert – Beit Midrash AnalysisDecember 14, 2025

Sugya Map

  • Issue: The halachot pertaining to blemished bekhorim (firstborn animals) and ma'aser beheima (animal tithe), particularly concerning their sale, slaughter, and the crucial question of who is deemed credible to testify regarding their blemishes. A central tension revolves around the intentionality of the blemish and the potential for self-interest to influence testimony.
  • Nafka Mina(s):
    • Whether bekhorim and ma'aser can be sold in the public market (ba'itliz) or only privately.
    • The criteria for permitting a blemished bekhor to be slaughtered (e.g., intentional vs. unintentional blemish).
    • The credibility of various individuals (Israelite shepherds, Kohen shepherds, Kohanim in general) to attest to the blemish's origin.
    • The required expertise for assessing blemishes (three synagogue-goers vs. an expert).
    • The halachic implications if a bekhor is slaughtered without proper authorization.
  • Primary Sources: Mishnah Bekhorot 5:4-5; Gemara Bekhorot 35a-36a (implied by commentaries).

Text Snapshot

Mishnah Bekhorot 5:4-5:

With regard to all disqualified consecrated animals... all benefit accrued from their sale belongs to the Temple treasury. ...these animals are sold in the butchers’ market [ba’itliz] and slaughtered in the butchers’ market, ...And their meat is weighed and sold by the litra, ...

This is the halakha with regard to all consecrated animals except for the firstborn offering and an animal tithe offering. When these become blemished and their slaughter is permitted, they are sold and slaughtered only in the owner’s house and are not weighed; rather, they are sold by estimate. The reason is that all benefit accrued from their sale belongs to the owner, i.e., the priest in the case of the firstborn and the owner in the case of the animal tithe offering. ...

And although the meat of the firstborn is not weighed and sold by the litra, nevertheless, if one has non-sacred meat weighing one hundred dinars, one may weigh one portion of non-sacred meat against one portion of the meat of the firstborn, because that is unlike the manner in which non-sacred meat is weighed.

Beit Shammai say: An Israelite cannot be counted with the priest to partake of a blemished firstborn. And Beit Hillel deem it permitted for him to partake of it, and they deem it permitted even for a gentile to partake of a blemished firstborn.

With regard to a firstborn animal that was congested with excess blood, even if the animal will die if one does not let the excess blood, one may not let its blood, as this might cause a blemish, and it is prohibited to cause a blemish on consecrated animals. This is the statement of Rabbi Yehuda. And the Rabbis say: One may let the blood provided that he will not cause a blemish while doing so, and if he caused a blemish, the animal may not be slaughtered on account of that blemish. ...

Rabbi Shimon says: One may let the blood even if he thereby causes a blemish in the animal.

In the case of one who slits [hatzorem] the ear of a firstborn offering, that person may never slaughter that animal. This is the statement of Rabbi Eliezer. And the Rabbis say: If another blemish later develops in the firstborn, he may slaughter the animal on account of that second blemish.

There was an incident involving an old ram whose hair was long and dangling, ...A Roman quaestor [kastor] saw it and said ...They said to him: It is a firstborn offering, and therefore it may be slaughtered only if it has a blemish. The quaestor took a dagger [pigom] and slit its ear. And the incident came before the Sages for a ruling, and they deemed its slaughter permitted. ...

This is the principle: With regard to any blemish that is caused intentionally, the animal’s slaughter is prohibited; if the blemish is caused unintentionally, the animal’s slaughter is permitted.

If one’s firstborn offering was pursuing him, and he kicked the animal and caused a blemish in it, he may slaughter the animal on account of that blemish.

With regard to all the blemishes that are capable of being brought about by a person, Israelite shepherds are deemed credible to testify that the blemishes were not caused intentionally. But priest-shepherds are not deemed credible, as they are the beneficiaries if the firstborn is blemished. Rabban Shimon ben Gamliel says: A priest is deemed credible to testify about the firstborn of another, but is not deemed credible to testify about the firstborn belonging to him. Rabbi Meir says: A priest who is suspect about the matter of causing a blemish may neither adjudicate nor testify in cases involving that matter, even on behalf of another.

A priest is deemed credible to say: I showed this firstborn animal to an expert and he ruled that it is blemished.

Everyone is deemed credible to testify about the blemishes of an animal tithe offering, even the owner who is the beneficiary of a ruling that it is blemished.

With regard to a firstborn animal whose eye was blinded or whose foreleg was severed or whose hind leg was broken, ...that animal may be slaughtered on the basis of the ruling of three regular Jews who attend the synagogue, and it does not require a ruling by one of the Sages. Rabbi Yosei disagrees and says: Even if there is a court of twenty-three Sages there, it may be slaughtered only on the basis of the ruling of an expert in judging blemishes.

...If one slaughters a bekhor without showing it, what they ate, they ate, and he returns the money. What they didn't eat is buried, and he returns the money.

...Likewise, a tereifa cow, what they ate, they ate, and what they didn't eat is returned to the seller...

Dikduk/Leshon Nuance:

  • The Mishnah begins with a categorical distinction: "כל פסולי הקדשים" (all disqualified consecrated animals) versus "הבכור והמעשר" (the firstborn and the tithe). This semantic separation immediately signals differing halachot based on the beneficiary of the sale (Temple treasury vs. private owner/priest).
  • The phrase "באיטליז... ובליטרא" for hekdesh highlights public, measured commerce, contrasting with the more private, un-weighed sale of bekhor and ma'aser.
  • The cases of the Roman quaestor and children tying tails illustrate the principle of mumar (intentional causing of a blemish) versus shogeg (unintentional) through narrative examples, emphasizing the halachic sensitivity to human agency.
  • "כל המומין הראויין לבא בידי אדם" limits the scope of suspicion to blemishes that could reasonably be inflicted by a person, distinguishing them from congenital or freak deformities.

Readings

Rambam, Mishnah Commentary, Bekhorot 5:4:1

The Rambam, with his characteristic analytical precision, unpacks the rationale behind the Mishnah's rules regarding credibility for bekhorim. He focuses on the distinction between Israelite shepherds and Kohen shepherds:

היה בכור רודפו ובעטו ועשה בו מום הרי כו': כל המומין הראוין לבא בידי אדם רועים כו': כבר זכרנו שהכהנים חייבין בבכור בהמה טהורה כמו שאמר לא נפטרו מבכורות בהמה טהורה ואם יפול בו מום יאכלנו בעליו הכהן בטומאה כמו שיאכל בכור ישראל שנפל בו מום ואמר שאם היה זה הרועה ישראל ורועה בהמות כהן ואמר שהמום הזה אירע בלי כוונה הרי הוא נאמן לפי שלא יגיע לו תועלת שיעשה הוא המום וא"ת שאנו חוששין שמא יעשה זה כדי שיאכיל אותו ממנו הכהן כשישחט אותו מפני שמותר לישראל לאכול מבכור בעל מום כמו שזכרנו אין חוששין לזה לפי שהוא שיעור מועט ועל שיעור מועט כזה לא יעשה עון והוא ענין מה שאמר ללגימה לא חיישינן אבל אם היה הענין בהפך כמו שהיה הרועה כהן והבהמה של ישראל אינו נאמן הרועה לפי שבכור בעל מום מתנה לכהן כמו שזכרנו באורו והרועה חושב בדעתו שלא יניח אותו ויתנהו לזולתו מן הכהנים ולפיכך אנו חוששין שמא הוא עשה בו המום בכוונה ר"ל הרועה כדי שיאכלנו במומו וכן אינו מותר להעיד כהן אחר אם נפל מום בבכור דחיישינן לגומלין זה את זה ואמר רשב"ג נאמן הוא על של חבירו ואינו נאמן על של עצמו וחלק עליו ר"מ ואמר הואיל והוא חשוד אינו נאמן לא על של חבירו ולא על של עצמו וענין מחלוקת ר"מ ות"ק שר"מ אומר בכור כהן צריך ב' מן השוק להעיד עליו ות"ק אומר אינו מעיד כהן על בכור כהן הא שלא כהן מעיד ואפי' א' ורשב"ג אומר אפי' בני ביתו של כהן ובניו נאמנים אבל אשתו לא לפי שהיא כגופו והלכה כרשב"ג: ^Rambam, Mishnah Commentary, Bekhorot 5:4:1^

The Rambam's chiddush lies in applying the principle of "אין אדם חוטא ולא לו" (a person does not sin without benefiting from it) to explain the credibility rules. He states that an Israelite shepherd tending a Kohen's bekhor is credible because he gains no direct benefit from blemishing the animal. Even if one were to suggest he might blemish it so the Kohen would feed him some meat, the Rambam dismisses this as "שיעור מועט" (a minimal amount), invoking the principle of "ללגימה לא חיישינן" (we do not suspect for a mere sip/minimal benefit). Conversely, a Kohen shepherd tending an Israelite's bekhor is not credible because a blemished bekhor becomes a gift to a Kohen. The Kohen shepherd might intentionally blemish it, hoping to receive it himself, thereby directly benefiting. The Rambam extends this suspicion to gomalin (reciprocal benefit) among Kohanim generally, leading to their disqualification from testifying for other Kohanim. He then presents the differing views of R. Shimon b. Gamliel (trusted on another's, not his own) and R. Meir (not trusted on any bekhor due to general suspicion), concluding the halacha follows R. Shimon b. Gamliel.

Tosafot Yom Tov, Bekhorot 5:4:4

The Tosafot Yom Tov delves into the precise nuance of the Mishnah's phrase "רועים כהנים אינן נאמנים" (priest-shepherds are not deemed credible). He raises a compelling question about the specificity of "רועים":

רועים כהנים אינן נאמנים . פי' הר"ב רועים שהם כהנים. אינם נאמנים כשרועים בהמתן של ישראל וכו'. והוא הדין דכהן רועה אין נאמן להעיד על הבכור של כהן אחר דחיישינן לגומלין וכו'. וכן לשון רש"י. וצ"ע דמידי הוא טעמא אלא משום דחיישינן לגומלין וא"כ מאי איריא כהן רועה אפילו שאינו רועה נמי לא. וה"נ קאמרי להעיד על הבכור של כהן אחר. וא"כ אפי' שאינו רבו וכיון דאף על שאינו רבו לא יעיד אפילו שאינו רועה נמי. דהא לא שייך מימר אמר לא שביק רבי לדידי כו'. וה"נ כתב הר"ב לקמן בדבור ר' מאיר אומר כו' דלת"ק דוקא כהן אינו נאמן כו'. ולא אתני כהן רועה. ש"מ דס"ל דאפילו שאינו רועה נמי לא. ולישנא דגמ' וה"ה כהן לכהן דחיישינן לגומלין. ומיהו רש"י מפרש לקמן בהא דאיכא בין ר"מ לת"ק דלת"ק ב' כהנים שאינם רועים נאמנים. ושנים שהם רועים אינם נאמנים על של רבם. דלא חיישינן לגומלים אלא ברועים דקאי גביה וסבר אעיד את רבי והוא יעידני כשיתן לי ישראל בעלמא בכור. גם דברי הר"ב דלקמן בדעת הת"ק יש לפרש כך. ולפיכך יש לומר דדייק לכתוב כהן רועה לומר דאיכא בין רועה לאחר. דרועה אפילו שנים אינם נאמנים. ושאינם רועים כשהם שנים נאמנים. ודייק נמי לכתוב להעיד על הבכור של אחר לומר שכשאינו אלא אחד המעיד אפילו על אחר שאינו רבו נמי לא וממילא דאפילו אינו רועה נמי. דחשש דרועה ליתא אלא ברבו. כך נראה לי ליישב דבריו שבחכמת לשונו משמיענו. דהא דכהן לכהן איכא בתרי גווני. אי בדוקא רועה. וא"נ כשאינו רועה דאפילו לאחר לא. וסמך על המסקנא דרועה אפילו שנים לא וכשאינו רועה כשהוא אחד לא מהימן: ^Tosafot Yom Tov, Bekhorot 5:4:4^

The Tosafot Yom Tov's chiddush is in meticulously dissecting the Mishnah's language to uncover deeper distinctions. He challenges the notion that "רועים" is merely descriptive. If the halacha is due to gomalin (reciprocal benefit), why specify "shepherds"? Wouldn't any Kohen be suspected of gomalin when testifying for another Kohen? He explores Rashi's position (in the Gemara) which suggests that gomalin is specifically suspected among shepherds who are in close proximity to the animals and their owners ("דקאי גביה") and might think, "I'll testify for my master, and he'll testify for me when I get a bekhor from an Israelite." Thus, the term "רועים" might be precise: it differentiates between a Kohen shepherd (where the suspicion of gomalin is heightened, perhaps even two such shepherds are not trusted) and a Kohen who is not a shepherd (where two might be trusted). He further deduces that even a non-shepherd Kohen testifying alone for another Kohen (not his master) might not be trusted, but the core suspicion for gomalin among shepherds is unique due to their inherent proximity and direct involvement with the animals. This careful parsing of the Mishnah's terminology reveals a more granular application of suspicion.

Friction

Kushya: The Scope of "חשוד על הדבר"

Rabbi Meir's sweeping statement, "החשוד על הדבר לא דנו ולא מעידו" (One who is suspect concerning a matter may neither adjudicate nor testify concerning it), seems to establish a broad principle of disqualification based on general suspicion. This appears to contradict the more common halachic default of "אין אדם חוטא ולא לו" (a person does not sin without benefiting from it), which generally assumes credibility unless there's a direct, substantial, and immediate benefit from the transgression. Indeed, the Rambam, in various places in Mishneh Torah, applies "אין אדם חוטא ולא לו" to validate testimony even when a potential (but indirect) benefit exists.^Rambam, Hil. Ma'aser 12:5; Hil. Shemittah ve'Yovel 8:12; Hil. Ishut 11:15.^ The Tosafot Yom Tov, in his commentary to our Mishnah, explicitly grapples with this tension, noting that the Rambam rules like R. Shimon ben Gamliel here, but elsewhere seems to reject R. Meir's broader principle of suspicion.^Tosafot Yom Tov, Bekhorot 5:4:7 s.v. רבי מאיר אומר החשוד על הדבר.^ How can we reconcile R. Meir's seemingly universal principle, recorded in the Mishnah, with the broader halachic acceptance of "אין אדם חוטא ולא לו"? Is the bekhor unique, or is there a general rule being debated?

Terutz: Contextualizing Suspicion

The Tosafot Yom Tov (Bekhorot 5:4:7), citing the Ra'avad, offers a compelling resolution: the stringency of "חשוד על הדבר" might be context-specific. While "אין אדם חוטא ולא לו" serves as a general presumption, the mitzvah of bekhor is uniquely susceptible to human manipulation and temptation for Kohanim. The Tur (Yoreh De'ah 314), cited by Tosafot Yom Tov, notes that Kohanim face "טורח גדול" (great burden) in caring for bekhorim until they die or become blemished, creating a strong incentive to cause a blemish. This unique burden and temptation, specific to bekhorim, might elevate the level of suspicion beyond the general "אין אדם חוטא ולא לו" threshold.

The Ra'avad suggests that the Sages instituted a kenas (penalty) specifically for bekhorim when a blemish is intentionally caused, meaning it cannot be slaughtered on that blemish. This punitive aspect, tied to human agency and the direct benefit derived by the Kohen from a blemished animal, could justify a stricter approach to credibility. Tosafot Yom Tov concludes that even the Rambam, despite his general reliance on "אין אדם חוטא ולא לו," might agree that the ruling in our Mishnah is specific to bekhorim, not a universal endorsement of R. Meir's principle. He suggests the Rambam does not rule like R. Shimon b. Gamliel "בכל מקום" (everywhere), but "דוקא הכא בבכור" (specifically here regarding a bekhor). Thus, the bekhor is an outlier, a special case where the confluence of direct personal benefit, significant burden, and potential for intentional transgression warrants a heightened state of suspicion that overrides the general principle of trust.

Intertext

A. The Principle of "אין אדם חוטא ולא לו"

The principle of "אין אדם חוטא ולא לו" (a person does not sin without benefiting from it) is a cornerstone of halachic jurisprudence, frequently employed to assess human motivation and the credibility of witnesses. It posits that people generally do not transgress a prohibition unless they stand to gain some tangible benefit. This principle is utilized in various contexts to determine when to trust testimony or presume innocence. For example, the Gemara in Yoma 81a uses it to explain why we don't suspect someone of eating on Yom Kippur without cause. Similarly, Niddah 49a discusses its application in the context of witnesses. In our sugya, the Rambam explicitly invokes this principle to explain why an Israelite shepherd is trusted: his benefit is too minimal ("ללגימה לא חיישינן") to assume he would intentionally cause a blemish.^Rambam, Mishnah Commentary, Bekhorot 5:4:1.^ This demonstrates that Chazal were acutely aware of human psychology and the threshold at which self-interest becomes a disqualifying factor.

B. The "קל" of D'mai

Another relevant parallel arises from the halachot of D'mai (produce concerning which there is a doubt whether tithes were taken), specifically Mishnah Demai 4:6. This Mishnah discusses chamarin (donkey drivers) entering a city, where one declares his produce "חדש" (new, untithed) and his friend's "ישן" (old, tithed). He is not trusted due to suspicion of gomalin (reciprocal benefit), i.e., "I'll help you now, you help me later." Tosafot Yom Tov (Bekhorot 5:4:5) notes this parallel but distinguishes it from the bekhor sugya concerning R. Shimon b. Gamliel's ruling. In the D'mai case, the gomalin is more immediate and concrete: both parties are present, and the potential for a direct, current reciprocal benefit from the sale of produce is high. This is contrasted with the bekhor case, where the gomalin might be more speculative and distant – a Kohen testifying for another now, in the hope that someday in the future, if he receives a bekhor and blemishes it, the other Kohen will reciprocate. The immediacy and certainty of benefit significantly impact the level of suspicion attributed to gomalin, highlighting Chazal's nuanced approach to potential conflicts of interest.

Psak/Practice

Rambam's View and its Nuance

The halacha largely follows the distinctions laid out in the Mishnah and elaborated by the Rishonim. The Rambam, in Mishneh Torah, codifies these rules with precision. He rules that for blemishes "capable of being brought about by a person," an Israelite shepherd is trusted, but a Kohen shepherd is not.^Rambam, Hil. Bekhorot 2:10.^ Furthermore, he adopts Rabban Shimon ben Gamliel's position that a Kohen is trusted regarding a bekhor belonging to another Kohen, but not his own.^Rambam, Hil. Bekhorot 2:11.^ However, the Rambam introduces a crucial caveat: if a Kohen is generally "חשוד על הדבר" (suspect regarding the matter of bekhorim), then even for another Kohen's animal, he is not trusted, aligning with Rabbi Meir's more stringent view for specific cases of suspicion.^Rambam, Hil. Bekhorot 2:11.^ This illustrates a multi-layered psak: a general Kohen is trusted on another's bekhor (per R. Shimon b. Gamliel), but a Kohen with a specific history or reputation of suspicion regarding bekhorim falls under R. Meir's broader disqualification. This approach respects both the general presumption of "אין אדם חוטא ולא לו" and the need for heightened vigilance in specific, sensitive contexts.

Meta-Psak Heuristics: Balancing Trust and Self-Interest

This sugya provides a profound lesson in halachic epistemology and practical ethics. Chazal recognized the inherent tension between extending trust—a foundational element of societal interaction—and guarding against self-interest and potential manipulation, especially concerning sacred objects. The careful distinctions between types of hekdesh (general hekdesh vs. bekhor/ma'aser), types of blemishes (intentional vs. unintentional), and categories of witnesses (Israelite vs. Kohen, shepherd vs. non-shepherd, own vs. another's) demonstrate a sophisticated understanding of human motivation. The halacha doesn't assume universal malevolence, but neither does it ignore the reality of human temptation. It establishes clear boundaries and criteria for when suspicion is justified, thereby protecting the integrity of mitzvos while largely preserving the fabric of interpersonal trust. This nuanced approach serves as a powerful heuristic for evaluating credibility in various halachic and even secular contexts.

Takeaway

The sugya meticulously delineates when and why self-interest, even indirect or minimal, compromises credibility in halachic matters, particularly concerning the unique sensitivities of bekhorim. It underscores Chazal's profound insight into human nature, balancing a general presumption of trust with a vigilant awareness of temptation.