Following the tragic death of Nadab and Abihu, Aaron and his remaining sons are plunged into deep mourning. In this highly sensitive moment, Moses guides them on how to handle the grain offering, establishing essential laws about priestly rights, the location of consumption, and a unique exception to the laws of mourning. He instructs them that the offering must be eaten in a holy place, specifically within the enclosed courtyard of the Tabernacle [ביאור יש״ר, רש״ר הירש]. This strict geographical limit is specific to this offering, contrasting with other sacred breads, such as those from a thanksgiving or Nazirite offering, which are permitted to be eaten anywhere within the city [תורה תמימה, חזקוני].
Moses explains that this offering is a fixed, allotted portion, serving as the rightful livelihood and basic sustenance for the priests [ביאור שטיינזלץ, העמק דבר, ברכת אשר]. This event carries historical weight, as it marks the very first time Aaron and his sons actually receive their personal share from the communal offerings [רש״ר הירש]. However, this right comes with distinct limitations. The primary approach among commentators emphasizes that this portion is reserved exclusively for the male priests, specifically excluding their daughters and converts. Because this offering possesses the highest degree of holiness, daughters have no share in it. Unlike lighter offerings, where family members might partake, here daughters are absolutely forbidden from eating, even if the male priests attempt to give them a portion as a gift [רש״י, משכיל לדוד, תורה תמימה, ברכת אשר, אילת השחר]. Additionally, the priests' right to their share is entirely dependent on the altar. They only receive their portion after a part of the offering has been burned in the fire for God. If the offering is invalidated and not burned, the priests do not get to share in it [תורה תמימה, מלבי״ם].
Finally, Moses addresses the deeply unusual circumstances of that specific day. Aaron and his sons are acute mourners, having just lost their close family members. The basic rule is that a mourner is strictly forbidden from eating holy offerings. Consuming these sacred foods requires a mindset of joy and peace, which directly contradicts the sharp, subjective pain of fresh grief. Even a High Priest, who is permitted to perform the sacrificial service while mourning, is barred from eating the offerings [רש״ר הירש, פירושי רד״צ הופמן]. Therefore, Moses stresses that he received a direct command from God for them to eat the offering despite their profound sadness. This is not an optional meal or a standard privilege, but a rare, one-time exception specifically for the communal offerings of the Tabernacle dedication. The priests are asked to rise above their personal sorrow, elevating the act of eating itself into a vital part of the nation's service to God [רש״י, מזרחי, מלבי״ם, רש״ר הירש, ביאור שטיינזלץ].