The masechet so far, chapter by chapter

Masechet Bekhorot explores the laws governing sanctified firstborn animals and human sons, detailing their exemptions, redemptions, and physical blemishes that affect their status or altar eligibility. Through daf 50, the tractate completes its survey of animal and priestly blemishes and details the redemption of the firstborn son (pidyon haben) along with biblical coin valuations.

Chapter 1 – הלוקח עובר חמורו: Redemption of a Firstborn Donkey

This chapter addresses the requirement to redeem a firstborn donkey with a sheep or goat given to a priest. Gentile partnership or ownership in the animal exempts its offspring from firstborn status, as does priestly or Levite lineage. If the owner refuses to redeem the donkey, he must break its neck from behind and bury it.

Gentile partnership in a donkey or its fetus exempts the offspring from firstborn sanctity.
A firstborn donkey is redeemed with a male or female lamb, whether unblemished or blemished.
If the owner refuses to redeem the donkey, he must break its neck and bury it.
An owner who designates a replacement lamb for a donkey does not bear financial responsibility if it dies.

Chapter 2 – הלוקח עובר פרתו: Firstborn Kosher Animals and Gentile Partnerships

This chapter examines the inherent bodily sanctity of firstborn male kosher livestock, which are given directly to the priest. Any gentile ownership share or financial lien on the mother animal exempts the offspring from holiness. It also outlines rulings for twin births of uncertain sequence and births delivered by caesarean section.

Gentile ownership or guaranteed investment rights in a mother animal exempts its offspring from firstborn sanctity.
Pre-existing permanent blemishes limit a consecrated animal to monetary value, allowing redemption and feeding its carcass to dogs.
When male twin lambs emerge together, Rabbi Akiva awards the leaner animal to the priest due to doubt.
An animal born by caesarean section and the offspring following it both lack firstborn status according to Rabbi Akiva.

Chapter 3 – הלוקח בהמה: Identifying Prior Births and Shearing Prohibitions

This chapter details how to establish whether a purchased mother animal previously gave birth, using physical signs like murky uterine fluid or nursing habits. It also presents the prohibition against shearing a firstborn animal. Loosened wool on the neck may only be moved aside to inspect blemishes or facilitate ritual slaughter.

A murky uterine discharge in small livestock confirms a prior pregnancy, exempting future offspring from firstborn status.
A nursing animal is presumed to nurse only its biological offspring, establishing that it gave birth previously.
One may pluck neck hair with a cleaver to facilitate slaughter, provided loosened hair remains mixed in place.
Wool shed from a blemished firstborn before slaughter remains forbidden unless naturally held inside the fleece.

Chapter 4 – עד כמה: Rearing Periods, Inspectors, and Suspect Vendors

Owners must raise a firstborn animal for thirty days for small livestock and fifty days for cattle before delivering it to a priest. A firstborn may only be slaughtered outside the Temple if an expert confirms a permanent blemish. The chapter also establishes rules regarding court fees, judge liability, and commercial reliability of suspect individuals.

An owner must raise a firstborn sheep for thirty days and cattle for fifty days before giving it away.
Authorized court experts like Rabbi Tarfon are exempt from financial restitution if they make a mistaken halakhic ruling.
Blemish inspectors may receive a fixed fee, but judges may only accept compensation for lost work wages.
Suspicion of violating tithes or the Sabbatical Year invalidates a person from giving testimony in related matters.

Chapter 5 – כל פסולי המוקדשין: Commercial Restrictions and Intentionally Causing Blemishes

Disqualified consecrated animals are sold publicly to benefit the Temple, whereas blemished firstborns may only be sold privately at home by estimate. Intentionally inflicting a blemish on a firstborn permanently prohibits its slaughter until another natural blemish occurs. Specific testimony rules dictate when shepherds or priests are trusted regarding an animal's injuries.

Blemished firstborns must be sold at home by estimate rather than weighed in the public butcher's market.
Intentionally causing a blemish prohibits slaughtering the animal unless a second, unrelated blemish develops naturally.
Beit Hillel permit non-priests and even ritually impure individuals to eat the meat of a blemished firstborn.
Meat from an uninspected firstborn that was sold must be refunded, and remaining meat must be buried immediately.

Chapter 6 – על אלו מומין: Disqualifying Physical Blemishes in Animals

This chapter enumerates the exposed, permanent physical blemishes that disqualify sacrificial animals and allow a firstborn to be slaughtered outside the Temple. These include split or perforated ear cartilage, chronic weeping eyes, missing testicles, and broken or asymmetrical limbs. Conversely, temporary ailments like healing boils or hidden internal tooth injuries do not permit slaughter.

An ear blemish requires pierced cartilage the size of a bitter vetch or a permanent split.
Eye tears are considered permanent blemishes only after failing to heal following moist and dry fodder regimens.
Dislocated joints, broken limb bones, or having extra or missing legs constitute permanent blemishes.
Boils moist inside and out, internal tooth damage, and temporary eye spots do not permit slaughter outside the Temple.

Chapter 7 – מומין אלו: Physical Disqualifications for Priests and Offerings

All permanent and transient animal blemishes, along with human-specific deformities, disqualify a priest from performing the Temple service. Disqualifications include abnormal head structures, missing eyebrows, sunken noses, mismatched limb sizes, or extra fingers. The chapter also identifies non-blemish disqualifications, such as entering a forbidden marriage or contracting corpse impurity.

Priest disqualifications include a pointed head, a flat nose, missing eyebrows, or having no hair encircling the head.
Amputating an extra digit containing bone leaves a priest permanently disqualified as someone missing a limb.
Conditions like drunkenness, dwarfism, or being a deaf-mute disqualify priests from service but do not disqualify animals.
A priest in a forbidden marriage must vow to forgo marital benefit before serving in the Temple.

Chapter 8 – יש בכור: Redemption of the Firstborn Son

This chapter defines the criteria for a son to be considered a firstborn regarding the double portion of inheritance, redemption from a priest (pidyon haben), or both. Maternal history, miscarriages, and birth sequences determine whether an infant opens the womb or is the father's primary offspring. The chapter also details doubtful parentage cases and establishes the required payment standard in silver shekels.

A son following a miscarriage of an underdeveloped fetus receives a double inheritance but requires no redemption.
Twin boys of uncertain birth order require the father to pay five sela (shekel coins) after thirty days.
A father who never redeemed himself must redeem himself first before redeeming his newborn son.
Biblical redemption requires five high-grade Tyrian silver sela, which may be paid using equivalent goods.

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