3. Mose 7:24

The fat of cattle that had fallen (נבלה), or been torn to pieces (viz., by beasts of prey), was not to be eaten, because it was unclean and defiled the eater (Lev 17:15; Lev 22:8); but it might be applied "to all kinds of uses," i.e., to the common purposes of ordinary life. Knobel observes on this, that "in the case of oxen, sheep, and goats slain in the regular way, this was evidently not allowable. But the law does not say what was to be done with the fat of these animals." Certainly it does not disertis verbis; but indirectly it does so clearly enough. According to Lev 17:3., during the journey through the desert any one who wanted to slaughter an ox, sheep, or goat was to bring the animal to the tabernacle as a sacrificial gift, that the blood might be sprinkled against the altar, and the fat burned upon it. By this regulation every ordinary slaughtering was raised into a sacrifice, and the law determined what was to be done with the fat. Now if afterwards, when the people dwelt in Canaan, cattle were allowed to be slaughtered in any place, and the only prohibition repeated was that against eating blood (Deu 12:15-16, Deu 12:21.), whilst the law against eating fat was not renewed; it follows as a matter of course, that when the custom of slaughtering at the tabernacle was restricted to actual sacrifices, the prohibition against eating the fat portions came to an end, so far as those animals were concerned with were slain for consumption and not as sacrifices. The reason for prohibiting fat from being eaten was simply this, that so long as every slaughtering was a sacrifice, the fat portions, which were to be handed over to Jehovah and burned upon the altar, were not to be devoted to earthly purposes, because they were gifts sanctified to God. The eating of the fat,…

Here is, I. The law of the trespass-offering (Lev 7:1-7), with some further directions concerning the burnt-offering and the meat-offering (Lev 7:8-10). II. The law of the peace-offering. The eating of it (Lev 7:11-21), on which occasion the prohibition of eating fat or blood is repeated (Lev 7:22-27), and the priests' share of it (Lev 7:28-34). III. The conclusion of those institutions (Lev 7:35, etc.).

7:24 Animals found dead had not been drained of their blood and were therefore unclean. Their fat was unfit to offer to the Lord and could not be eaten. However, it could be used for any other purpose, such as greasing cart axles, waterproofing animal hides, and other household uses.