Talmudic Debate Over Priestly Fitness

A Talmudic dispute centers on whether a priest with extra fingers or toes can perform ritual service. The Gemara on Bechoros 45b examines this specific deformity. A Mishna in 45a records a conflict between R. Yehuda and the Sages. Both sides reference the same verse in II Samuel 21:20. That text describes a man with six fingers on each hand and six toes on each foot. R. Yehuda viewed the verse as a praise of the individual's strength. The Sages interpreted the text as a criticism of the person.

The text cites a historical incident where a man with additional extremities appeared before R. Tarfon. R. Tarfon told the man, “May the likes of you increase manifold in Israel.” R. Yose challenged this reading. He argued R. Tarfon meant the visible deformity would help identify such individuals. Specifically, R. Yose suggested the trait would allow the community to reduce the number of mamzerim and nesinim. The nesinim were a group King David excluded from marrying into the Jewish people.

The discussion shifts to the legal status of a son born from an illicit union. The Mishna in Yevamos 22b states that cursing a father carries a capital penalty. This rule applies to any son, including a mamzer. However, the Gemara limits the prohibition. A son may only be punished for cursing his father if the father is observant of Torah laws. If the father was a sinner who produced a mamzer, he is not protected by this law until he repents.

Scholars debate the nature of repentance for this specific transgression. Shimon b. Menassiah in Chagiga 9a calls fathering a mamzer a crooked thing that cannot be made straight. Rabbenu Chayyim in Tosafos on Bava Bathra 89b argues that repentance fully eradicates the sin. He believes the only remaining effect is the constant humiliation the father feels. The visible existence of the mamzer serves as a reminder of the initial act.

Rashi offers a different interpretation. He states that the sin cannot be entirely erased if a mamzer exists. However, repentance removes the stigma of the father being a sinner. This change in status makes the son liable for cursing him. Kovetz He’aros adds that God usually removes all traces of sin retroactively. In this case, the visible trace of the mamzer prevents total erasure. Yet, the father is still considered observant from the moment of repentance onward.

R. Yose’s original comment suggests a practical benefit to public knowledge. If a mamzer’s status is known, others are protected from forbidden marriages. This public awareness prevents the trait from passing silently. Eventually, the physical sign of the transgression ceases to exist. This process leads to the sinner’s exoneration and restores his standing as a ba’al teshuvah.