During the grand meal at the palace, a striking seating arrangement divides the diners into three distinct groups: Joseph sits by himself, his brothers sit by themselves, and the Egyptian guests sit by themselves. This strict division causes wonder among the brothers, who are puzzled as to why a powerful Egyptian ruler would avoid eating with his own people and household [ביאור שטיינזלץ].
The primary approach among commentators is that Joseph's isolation is a matter of royal etiquette and honor. As a high ranking minister, it is considered inappropriate for him to dine at the same table as commoners or foreigners. Sitting apart maintains an aura of reverence and prevents a situation where the diners might have to share utensils with him [רד״ק, שד״ל, העמק דבר, בכור שור]. Others suggest that this separation is driven by tactical motives. Joseph may be attempting to conceal his Hebrew origins from his brothers [ספורנו]. Alternatively, he might be orchestrating a subtle psychological reminder of how they once treated him. Just as the brothers sat down to eat bread while leaving him isolated in a pit, he now sits alone, intentionally keeping them in a state of anxiety and preventing them from feeling overly secure [שפתי כהן]. Another perspective suggests that Joseph chooses to sit alone to navigate a delicate diplomatic balance, preserving his Hebrew identity without offending either the Egyptians or his brothers [רש״ר הירש, ביאור יש״ר]. The traditional phrasing of the narrative confirms that Joseph's isolation is strictly due to his royal status, clearly distinguishing his seating arrangement from the cultural barriers that separate the Egyptians from the brothers [ביאור יש״ר].
The separation between the brothers and the local officials stems from a strict Egyptian prohibition against eating with Hebrews. The profound aversion to this practice does not stem from a hatred of the Hebrew people themselves, but rather from the very act of sharing a meal with them [מזרחי, ברכת אשר]. Commentators explain this intense taboo through both religious and social lenses. From a religious standpoint, the Hebrews regularly slaughtered and ate sheep. The Egyptians, however, worshipped the ram, abstained entirely from eating meat, and only used sheep for their milk and wool. Consuming an animal revered by the Egyptians was viewed as a profound sacrilege [רש״י, רד״ק, נתינה לגר, ביאור יש״ר, ברכת אשר, ביאור שטיינזלץ].
From a cultural perspective, the deep disgust and emotional distress associated with sharing a meal reflect broader societal attitudes [רש״ר הירש]. Ancient Egyptians were known as an arrogant nation that looked down upon foreigners, particularly shepherds, and therefore refused to share a table with them [רשב״ם, חזקוני]. While the exact details of ancient Egyptian dietary customs may be difficult to fully grasp today, it is clear they maintained strict rules of permissible and forbidden foods that prevented them from dining with members of other faiths, functioning much like dietary laws do today [שד״ל]. Finally, the fact that the Hebrews are identified here as a separate, named nation, despite numbering only about seventy individuals at the time, highlights their distinct and prominent presence even at this early stage in history [רש״ר הירש].