שמות, פרק י״ב, פסוק מ״ז

The Passover sacrifice serves as a powerful unifying force, binding individuals to a shared historical memory and a collective spiritual purpose. It represents an absolute and sweeping obligation where every single person bound by the commandments is required to participate in the sacrifice, without any exceptions [אבן עזרא, אבן עזרא הקצר, קאסוטו]. This requirement is so fundamental that it stands as one of only two positive commandments carrying the severe penalty of spiritual cutoff for those who neglect it. This strictness stems from the reality that remembering the Exodus from Egypt forms the very foundation of faith, and no other action brings this memory to life quite like eating the Passover sacrifice [אבן עזרא].

Beyond the duty of the individual, the collective framework of the law shapes exactly how the sacrifice is offered. Even though the nation is naturally divided into smaller groups and individual households, the people must come together as a single, united congregation to offer the sacrifice, reflecting a shared destiny and purpose [רש ר הירש]. For this reason, the sacrifice cannot be offered on private altars or in scattered rural towns. It requires a complete gathering of all the Israelites in one place [העמק דבר]. Additionally, this framework draws a clear line between the Israelites and the slaves or foreign residents living among them. While these residents are permitted to eat from the sacrifice, they cannot prepare it themselves, unlike a circumcised convert who fully joins the congregation [שד״ל].

The primary approach among commentators highlights an important practical shift between the original Passover in Egypt and the Passover observed by future generations. During the Exodus, the sacrifice was eaten strictly within a tight-knit family unit, as the Israelites were forbidden from leaving their homes [רש״י, שד״ל, ברכת אשר]. To prevent the misconception that future generations must also restrict their gatherings to direct family members, the law introduces a new flexibility. It allows the sacrifice to be offered and eaten by mixed groups of people from completely different families [רש״י, שפתי חכמים, חזקוני, מלבי״ם, תורה תמימה]. This adaptation was necessary for life in the land of Israel, where the nation would be spread out and families would not always be able to travel and gather together [ברטנורא].

This shift from family-only gatherings to mixed groups raises a question regarding the Mishnah, which specifically summarizes the differences between the Passover in Egypt and the Passover of future generations. Surprisingly, the Mishnah omits this change in group formation [הכתב והקבלה, תורה תמימה]. The reason for this omission is that the Mishnah chose to list only the differences related to physical actions performed directly on the sacrifice itself, such as eating the meat in haste or applying the blood with a hyssop branch. It deliberately excluded differences regarding the human makeup of the group sharing the meal [דברי דוד].