A sudden and lethal epidemic strikes the very heart of Egyptian society and its economy. This plague targets the domestic animals that formed the backbone of daily life and were worshipped by the Egyptians as deities. Unlike previous plagues, this devastation arrives without any human intermediary. Moses and Aaron perform no physical action, such as raising a staff; the destruction is brought about directly by God [שד״ל]. In earlier plagues, like the invasion of wild beasts, the Egyptians could seek refuge inside their fortresses. However, a direct strike from heaven offers no possibility of escape [בכור שור]. While the earlier plague of lice forced the Egyptian magicians to recognize the mere "finger" of God, this plague reveals His entire hand striking with full force [אלשיך, קאסוטו]. The suddenness of the event highlights God's hidden power instantly manifesting in physical reality [רש״י, שד״ל, רש״ר הירש, קאסוטו].
Interestingly, the narrative employs the specific name of God associated with mercy rather than strict judgment. This explains why the Israelite herds were entirely spared, even though they too shepherded the very animals the Egyptians revered as gods [אלשיך].
The location of the plague, specifically targeting livestock in the field, is a subject of discussion. Some commentators take this literally, concluding that only the animals left outdoors perished, while those brought indoors survived, only to be killed later by the hail [רש״י, אור החיים, ביאור יש״ר, רלב״ג]. The primary approach among commentators, however, is that the plague struck all livestock indiscriminately, mentioning the field simply because that is where herds are typically kept [רמב״ן, הטור הארוך, רבנו בחיי, העמק דבר].
The outdoor setting actually amplifies the magnitude of the miracle. Because the Egyptians despised shepherds, they banished livestock to the outskirts of their cities, near the land of Goshen. There, Egyptian and Israelite flocks grazed side by side. Despite sharing the exact same physical space and air, the epidemic selectively struck only the Egyptian animals [רמב״ן, רבנו בחיי, ביאור יש״ר]. Furthermore, the fact that the animals died in the open field proves they did not succumb to the stagnant, polluted air of the city, but rather to a deliberate divine decree [העמק דבר].
The specific animals affected represent the entirety of the Egyptian infrastructure. Horses symbolize military and governmental might, donkeys are used for internal transportation, and camels facilitate foreign trade across the desert. Meanwhile, cattle and sheep provide essential labor, food, and clothing [רש״ר הירש]. Although some historians have questioned the presence of camels in ancient Egypt due to their absence in local art, commentators explain that camels were primarily used for long-distance travel. As such, they were not featured in artwork depicting daily domestic life, even though they were undoubtedly present [אם למקרא, קאסוטו].
The epidemic is described as a severe pestilence, a general term for a highly lethal disease [אבן עזרא, שטיינזלץ, אבן עזרא הקצר]. In a striking reversal, whereas an earlier plague brought foreign predators to terrorize Egypt, this plague destroys their own familiar domestic animals, serving as a spiritual punishment for idolizing them [ביאור יש״ר, צאינה וראינה]. From a natural standpoint, the disease might have been triggered by air and vegetation contaminated by the rotting insects from previous plagues. Yet, the complete immunity of the Israelite flocks undeniably confirms the supernatural and miraculous nature of the event [שד״ל].