שמות, פרק כ״א, פסוק י״ב

Human life holds supreme value, and the laws governing society reflect this fundamental truth. Placing the laws of a murderer immediately following the rules concerning a Hebrew slave sends a clear message. While a master may hold authority over a slave, taking the life of a free person carries the ultimate penalty [אבן עזרא, חזקוני]. The primary approach among commentators is that this structure mirrors the Ten Commandments. Just as the laws of the slave correspond to the first commandment acknowledging God, the laws of murder correspond to the command against taking a life, which is the first law governing human relationships. However, while the Ten Commandments issue a broad warning, the laws here establish the concrete punishment for the crime [כלי יקר, רבנו בחיי].

Criminal liability requires intentional physical harm [שד״ל, רלב״ג]. The severe punishment applies strictly to a fatal blow that ends a life, distinguishing it from a standard physical assault that only requires financial compensation. The death of the victim does not need to be instantaneous. If the victim dies days later as a direct result of the injury, the attacker still faces the ultimate penalty [אור החיים, שד״ל]. A unique perspective suggests that the crime might not always involve a clear, premeditated act of slaughter. It includes situations where the attacker may not have explicitly intended to kill, but was warned by witnesses that the physical strike could be fatal. By ignoring the warning and delivering the fatal blow, the attacker becomes fully responsible for the murder [העמק דבר].

The law carefully defines both the victim and the perpetrator. The victim must be a viable, living human being, a concept rooted in ideas of strength and stability [רש״י, הכתב והקבלה, תורה תמימה]. Because of this requirement, causing the death of a fetus or a non-viable premature infant does not carry the same capital punishment. The law applies equally whether the victim is a man, a woman, or a child [רש״י, תורה תמימה, רלב״ג]. Regarding the attacker, criminal responsibility only falls on a mature adult with full mental capacity. Therefore, a minor, someone who is deaf and mute, or a person lacking mental competence is exempt from the death penalty [רש״י, רלב״ג, תורה תמימה].

The certainty and severity of the punishment are absolute. The accepted understanding is that execution is never a private act of vengeance; it is carried out exclusively by a formal court after a thorough investigation of witnesses and a legal trial. The execution is performed by the sword, specifically through beheading [אבן עזרא, שד״ל, רלב״ג, מלבי״ם]. Applying the death penalty also exempts the murderer from paying financial compensation to the victim's family, following the legal principle that a person cannot receive two distinct punishments for the same crime [הטור הארוך].

Even if the justice system fails, absolute justice remains guaranteed. If earthly courts are dissolved, or if there is not enough evidence or witnesses to secure a conviction, the killer does not escape judgment. He remains marked for death, and God will ultimately judge him and ensure his punishment from heaven [אור החיים].