שמות, פרק י״ב, פסוק כ״ג

The night of the Exodus was defined by a profound dual reality. A single divine movement brought harsh judgment upon the Egyptian empire while simultaneously wrapping the Israelites in wondrous kindness. A night marked by widespread destruction transformed into a moment of strict, careful protection over the Hebrew homes.

The instruction to smear blood on the doorframes was a highly public and defiant act. By slaughtering sheep, which the Egyptians worshipped as a deity, and displaying the blood outside for all to see, the Israelites were effectively uprooting Egyptian beliefs from their own hearts and replacing them with the fear of God. This blood served as a powerful symbol, drawing a sharp line between the life granted to Israel and the death brought upon their enemies [רבנו בחיי].

The plague itself was driven by intense anger and wrath, functioning as a severe blow even if it did not always result in immediate death [ספורנו]. In contrast, the divine movement over the Israelite homes represented deep compassion and mercy, acting as a literal skipping or jumping over their houses [רש״י]. God actively denied the destructive forces any ability or permission to enter these protected spaces [אבן עזרא, שד״ל, רש״י, ביאור יש״ר].

A central question arises regarding who actually carried out the destruction. While tradition maintains that God Himself struck the firstborns, there was also a distinct force present, acting as a craftsman of destruction [הכתב והקבלה]. The primary approach among commentators is that while God directly struck the firstborns, He was accompanied by destructive angels acting as a king's executioners, who struck the rest of the Egyptians. God's role at the Israelite homes was to actively block these forces from entering [רמב״ן, רבנו בחיי, חזקוני, דעת זקנים, פענח רזא].

This active blocking was crucial. When a destructive force is unleashed during a plague, the attribute of strict justice naturally fails to distinguish between the righteous and the wicked. Therefore, special divine intervention was required to stop the destruction at the doorways of the Israelites [רקנאטי, רבנו בחיי]. This protection was especially necessary because there were wicked individuals among the Israelites who, under strict justice, deserved punishment during such a time of wrath. However, the merit of the elders and scholars shielded their simpler family members, saving everyone inside the home [העמק דבר].

An additional, supernatural miracle occurred that night. God prevented the forces of death from claiming even those Israelites whose natural time to die from ordinary causes had arrived. This ensured that there would be absolutely no crying or sadness in any Israelite home, allowing the entire nation to march toward redemption in complete joy [נחלת יעקב]. Ultimately, this divine passage operated on two opposing levels at the exact same time. It delivered a severe blow of justice to the Egyptians, while appearing as pure mercy, healing, and salvation for the Israelites [שפתי כהן].