The masechet so far, chapter by chapter

Masechet Bekhorot details the sanctification, physical blemishes, and redemption requirements for animal and human firstborns. Having completed the laws governing firstborn animals and disqualified priests, the tractate now focuses on the redemption and inheritance rights of firstborn human sons.

Chapter 1 – הלוקח עובר חמורו: Redemption of the firstborn donkey

A male firstborn donkey must be redeemed by giving a lamb or kid to a priest, or else its neck is broken. If an animal is owned in partnership with a gentile or born from a non-donkey mother, it is exempt from firstborn status. When births are mixed or doubts arise about which offspring emerged first, specific monetary rules govern the owner's liability to the priest.

Donkey fetuses owned partly or entirely by a gentile are exempt from firstborn status.
A firstborn donkey is redeemed with a male or female sheep or goat given to a priest.
If an owner refuses to redeem a firstborn donkey, its neck is broken from behind and it is buried.

Chapter 2 – הלוקח עובר פרתו: Firstborn kosher livestock and doubtful births

Male firstborn kosher livestock possess inherent sanctity and are given to the priest as sacrifices or food. Ownership by a gentile or birth through caesarean section removes firstborn status from the offspring. In cases of twin births where birth order is uncertain, monetary rules require the claimant priest to prove his share.

Sacrificial animals blemished before consecration hold only monetary value, so their offspring are obligated as firstborns.
In doubtful simultaneous twin births, Rabbi Tarfon awards the priest the fatter lamb, while Rabbi Akiva awards the leaner.
Offspring born by caesarean section do not possess firstborn sanctity because they did not open the womb.

Chapter 3 – הלוקח בהמה: Prior birth indicators and shearing restrictions

Physical signs such as afterbirth, fluid discharge, or nursing determine whether a purchased mother animal previously gave birth. Biblical law forbids shearing or working any firstborn animal, whether it is unblemished or blemished. Limited plucking of wool is permitted only to examine blemishes or clear the neck for slaughter.

A murky uterine discharge or afterbirth proves prior pregnancy and exempts subsequent offspring from firstborn sanctity.
A nursing animal bought from a gentile is presumed to have calved, exempting her later offspring.
Wool may be plucked with a cleaver to inspect a blemish or facilitate slaughter on a firstborn.

Chapter 4 – עד כמה: Tending periods, expert inspectors, and credibility

Owners must raise firstborn animals for a mandatory period before handing them over to a priest. Only authorized experts may inspect blemishes to permit slaughter outside the Temple, and judges may take wages only to replace lost work time. Suspected violators of ritual or agricultural laws are restricted from selling sensitive items or serving as witnesses.

Owners must care for a firstborn sheep thirty days and cattle fifty days before giving it to a priest.
Authorized court experts are exempt from restitution for mistaken rulings, and judges may take wages only for lost labor.
Vendors suspected of violating tithes or sabbatical year laws cannot be trusted regarding those specific transactions.

Chapter 5 – כל פסולי המוקדשין: Sale and intentional blemishing of firstborns

Blemished firstborns may be slaughtered and eaten, but their meat must be sold privately at home by estimation rather than by weight in a market. Transgressors are strictly forbidden to deliberately inflict blemishes on a firstborn to permit its slaughter. Priests and owners face specific credibility rules when testifying that an animal's injury occurred naturally.

Blemished firstborn meat must be sold privately by estimation at home, rather than by weight in a public market.
Intentionally causing a blemish on a firstborn prohibits slaughter until a separate natural blemish develops on the animal.
A butcher selling uninspected firstborn meat must refund all payments, and the remaining uneaten meat must be buried.

Chapter 6 – על אלו מומין: Disqualifying physical blemishes in animals

A firstborn animal may be slaughtered outside the Temple only if it develops an exposed, permanent blemish. Listed defects include torn ear cartilage, specific ocular cataracts, dislocated limbs, and damaged external organs. Transient blemishes, hidden internal defects, and general illnesses do not permit non-Temple slaughter.

Only permanent, exposed defects in cartilage or bone allow slaughtering a firstborn animal outside the Temple.
A white line entering the pupil is a permanent blemish, while temporary tears and moist boils are not.
Animals that committed bestiality or killed a human are permanently disqualified from sacrifice even upon single-witness testimony.

Chapter 7 – מומין אלו: Physical blemishes disqualifying priests from service

The physical blemishes that disqualify animals for sacrifice also bar priests from performing the Temple service. Priests are additionally disqualified by abnormal head shapes, mismatched facial features, dislocated joints, and physical disproportion. Priests who contract corpse impurity or enter forbidden marriages are barred until they formally correct the status.

Priests with abnormal head shapes, missing eyebrows, sunken noses, or mismatched limbs are disqualified from Temple service.
Amputating an extra finger containing bone leaves a priest disqualified as someone who is missing a limb.
A priest in a forbidden marriage is disqualified from Temple service until he vows to forgo spousal benefit.

Chapter 8 – יש בכור: Redemption and inheritance of firstborn sons

The law distinguishes between a son who is a firstborn for paternal inheritance and one who is a firstborn for priestly redemption through opening the womb. Miscarriages and uncertain parentage affect whether the five silver coins are due to the priest. The redemption payment becomes mandatory after thirty days and must be made with high-grade silver currency.

A son can be a firstborn for inheritance, for priestly redemption, for both, or for neither.
Caesarean-born sons and their subsequent brothers are exempt from both inheritance double portions and priestly redemption.
Redemption of a firstborn son requires five high-grade Tyrian silver sela coins payable after thirty days.

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