ויקרא, פרק כ״ג, פסוק י״ג

The offering of the Omer lamb marks a pivotal moment in the agricultural and ritual calendar, signaling the beginning of the grain harvest. Accompanying this lamb are grain and liquid offerings that break away from standard sacrificial rules, inviting a deeper look into their measurements and meaning. The grain offering is not an independent, voluntary gift, but rather an integral accompaniment belonging directly to the lamb [רש״י, מזרחי, גור אריה]. It consists of fine wheat flour mixed with oil, measuring two-tenths of an ephah—equivalent today to over four liters. The accompanying wine is measured at a quarter of a hin, which is three logs or roughly one liter [ביאור שטיינזלץ].

The primary approach among commentators is that this specific lamb is a striking exception. Every other lamb offering mandates a grain accompaniment of only one-tenth of an ephah, yet the Omer lamb requires double that amount. One perspective suggests this doubled portion serves as a symbol of blessing for the newly beginning harvest, expressing a hope that the crops will double and multiply [בכור שור, חזקוני]. Expanding on this idea of blessing, another approach notes that while the Omer offering itself is brought from barley to bless that specific crop, the additional tenth of fine wheat flour serves to bless the wheat harvest as well. In this way, the offering casts a blessing over all types of grain [פני דוד].

A more straightforward interpretation proposes that the two-tenths are simply two separate requirements combined into one: one-tenth serves as the Omer offering itself, while the second tenth functions as the standard grain offering for the lamb [דעת זקנים, בכור שור, הדר זקנים]. However, this view is firmly rejected. The mandated flour must be produced from wheat, whereas the actual Omer offering is exclusively brought from barley [חזקוני].

Even though the flour requirement is doubled, the accompanying wine libation does not increase. It remains at the standard measure of a quarter of a hin, just like any regular lamb [רש״י, אדרת אליהו]. This raises a question regarding the oil mixed into the flour: does the volume of oil increase proportionally to match the doubled flour? Through a subtle distinction in how the text is written versus how it is traditionally read, a dual meaning emerges. A masculine reading connects to the lamb and its wine, while a feminine spelling points to the grain offering and its oil. This fusion teaches that just as the wine remains at a quarter of a hin, the oil for the doubled flour is also capped at a quarter of a hin and does not increase [מנחת שי, תורה תמימה, מלבי״ם, חזקוני, רד צ הופמן]. Alternatively, this textual nuance indicates that a single quarter of wine covers the entire double portion of flour, precluding the need for a separate measure of wine for each tenth of flour [דעת זקנים, הדר זקנים].

Because of this unique irregularity—where the volume of flour changes but the liquid measurements remain strictly constant—a specific custom developed within the Musaf prayers. When reciting the sacrificial requirements, the prayers explicitly detail the varying flour measurements for each animal, but they do not specify the wine measurements, relying instead on the general statement regarding the wine being brought according to its standard libation [דעת זקנים, חזקוני].