The masechet so far, chapter by chapter

Masechet Bekhorot analyzes the sanctification, redemption, and processing of firstborn donkeys, humans, and kosher livestock, along with disqualified sacrifices. It now stands in the seventh chapter, examining the physical blemishes that disqualify priests from serving in the Temple.

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

This chapter addresses the mitzvah, or commandment, of redeeming a firstborn donkey with a lamb. It defines exemptions, such as partnership with a gentile or Levite ownership, and resolves cases of doubtful birth order. It also details valid replacement animals and the alternative penalty of breaking the donkey's neck.

Gentile partnership in a donkey or its fetus exempts the offspring from firstborn sanctity.
A firstborn donkey is redeemed with a sheep or goat lamb; otherwise its neck is broken.
If doubtful twin births occur, the owner designates a lamb but keeps it unless the priest proves ownership.

Chapter 2 – הלוקח עובר פרתו: Firstborn Kosher Animals and Pre-Existing Blemishes

This chapter contrasts the firstborn donkey with kosher firstborn livestock, where priests and Levites remain fully obligated. It explores the status of sacrificial animals whose blemishes preceded or followed consecration. It also details rules for doubtful twin births, guaranteed livestock, and caesarean deliveries.

Sacrifices consecrated with permanent blemishes possess only monetary value and their offspring are liable to firstborn sanctity after redemption.
When twin male lambs emerge together, Rabbi Tarfon awards the fatter lamb while Rabbi Akiva gives the leaner.
Offspring delivered by caesarean section and any following offspring are both exempt from firstborn sanctity.

Chapter 3 – הלוקח בהמה: Determining Prior Birth and Shearing Restrictions

This chapter establishes physical signs that prove an animal previously gave birth, exempting subsequent male offspring. It analyzes nursing behaviors and discharges that indicate pregnancy. Additionally, it prohibits shearing a firstborn and regulates wool removed for inspections or slaughter.

A murky uterine discharge or expelled afterbirth confirms prior pregnancy, exempting future offspring from firstborn sanctity.
A nursing mother animal purchased from a gentile is presumed to have calved, exempting her subsequent young.
Plucking hair by hand to inspect a blemish or make room for slaughter is permitted on a firstborn.

Chapter 4 – עד כמה: Rearing Periods, Inspections, and Commercial Trust

This chapter specifies how long an owner must tend a firstborn before delivering it to a priest. It outlines the twelve-month sacrificial window and the authority required to validate blemishes. Finally, it outlines restrictions and credibility rules for individuals suspected of violating ritual or agricultural laws.

An owner must care for a firstborn sheep thirty days and cattle fifty days before giving it to a priest.
Court-authorized expert judges are completely exempt from paying restitution for mistaken rulings that cause financial loss.
A blemish inspector may accept a set fee regardless of the ruling, but judges may only take lost wages.

Chapter 5 – כל פסולי המוקדשין: Sale, Consumption, and Intentionally Caused Blemishes

This chapter compares the private sale of blemished firstborns with the public sale of other disqualified sacrifices. It debates who may eat a blemished firstborn, including Beit Hillel permitting non-priests and ritually impure individuals. Crucially, it penalizes intentionally caused blemishes while permitting naturally or accidentally injured animals.

Blemished firstborn meat must be sold privately at home by weight estimate, not in public butcher shops.
Beit Hillel permit non-priests and ritually impure people, including menstruants, to eat meat from a blemished firstborn.
Slaughtering a firstborn with an intentionally caused blemish is forbidden until an independent, natural blemish develops.

Chapter 6 – על אלו מומין: Physical Blemishes in Animals

This chapter catalogs visible and permanent defects that permit slaughtering a firstborn animal outside the Temple. It details flaws in the ears, eyes, mouth, genitals, and limbs. It also identifies temporary flaws or congenital states, like a tumtum, an animal with concealed organs, that do not permit slaughter.

An ear blemish requires split cartilage, a notch catching a fingernail, or a perforation sized like a bitter vetch.
A tevallul is a permanent eye blemish where a white thread extends across the iris into the black pupil.
Internal bone fractures qualify as exposed blemishes because the animal's limp visibly reveals the injury during walking.

Chapter 7 – מומין אלו: Blemishes That Disqualify Priests from Service

This chapter extends animal blemishes to human priests, ruling that bodily defects disqualify them from performing the Temple service. It covers human-specific abnormalities involving skull shapes, facial features, misaligned limbs, and extra digits. It also discusses non-physical disqualifications, such as transgressing marriage laws or contracting corpse impurity.

A priest with abnormal head shapes, a sunken nose, or missing eyebrows is disqualified from Temple service.
Amputating an extra finger or toe containing bone still leaves the priest permanently disqualified as lacking a complete limb.
A priest in a forbidden marriage must vow publicly to forgo spousal benefit before performing the Temple service.

Learn Bekhorot 45 on Super Daf