ויקרא, פרק י״ז, פסוק ו׳

During the years the Israelites wandered in the desert, ordinary slaughter of animals for daily meals was strictly forbidden. Any animal intended for food had to be presented as a peace offering. This procedure ensured that the parts strictly prohibited for consumption, specifically the blood and the fat, were offered directly to God, while the owners could then enjoy the remaining meat [ביאור שטיינזלץ]. However, because the owners ate this meat freely throughout the camp, a dangerous misconception could easily arise. People might begin to think that slaughtering an animal outside the Tabernacle was a minor issue rather than a grave offense punishable by spiritual excision. To prevent this, a strict, unequivocal demand was established that every animal had to be brought to the Tent of Meeting, dedicated to God, and have its blood and fat offered on the altar [רלב״ג].

At first glance, restating the protocol for sprinkling the blood and burning the fat seems unnecessary, as these duties were already established in earlier laws. The primary approach among commentators is that this repetition serves to highlight the fundamental legal differences between offerings made in the Tabernacle and those made on a private, temporary altar. For instance, the specific requirement for a priest to officiate applies exclusively to the Tabernacle. At a private altar, the offering could validly be performed by non-priests, including women and slaves [תורה תמימה, מלבי״ם, אדרת אליהו]. The exact physical requirements of the altar also differ, though opinions vary on the details. Some maintain that a private altar does not even need to be a constructed structure, and an offering could simply be made on a rock [אדרת אליהו]. Others argue that even a private setting requires a properly built altar, much like the one Noah constructed after leaving the ark [תורה תמימה, מלבי״ם].

A subtle distinction also exists regarding where specific rituals take place. While the blood must be sprinkled directly upon the altar itself, the instructions for burning the fat omit a direct reference to the altar. This omission hints that the floor of the Tabernacle courtyard was also sanctified, meaning that, in theory, the fat could legally be burned directly on the courtyard floor [צפנת פענח]. Furthermore, the separation of these acts teaches an essential principle regarding how an offering functions. The core atonement is achieved through the sprinkling of the blood, whereas the burning of the fat serves to create a pleasing aroma. Consequently, if the meat of the offering is lost or becomes impure, the offering remains completely valid as long as the fat is preserved. In such a case, the blood is still sprinkled, and the fat is burned [תורה תמימה, אדרת אליהו].

The concept of producing a pleasing aroma for God involves more than just the fat. It also includes the lobe of the liver and the two kidneys, which are burned together [תורה תמימה, אדרת אליהו]. Notably, this specific status of a pleasing aroma is exclusive to the Tabernacle and does not apply to private altars [מלבי״ם, אדרת אליהו]. On a deeper level, this teaches a profound lesson about human intent. When a person directs their heart toward heaven, even if their initial motivation for slaughtering the animal was simply a physical desire to eat meat, the act is spiritually elevated. It transforms into a pleasing aroma to God and serves to increase peace in the world [ביאור יש״ר].