Peter Pett's Commentary on the Bible
Leviticus 10:12-15
What The Priests May Partake of Concerning the Holy Things (Leviticus 10:12).
He now moves on to the portions of the Priests from grain offerings and from peace sacrifices and the distinctions concerning the holiness of them. It is again concerned with the question of the holiness of the Sanctuary. What is ‘most holy' must be eaten before Yahweh. It must not be defiled by being taken from the Sanctuary. But what is merely ‘holy' can be shared by the priests with their families in any ‘clean place'. For the people themselves are a holy nation.
‘And Moses spoke to Aaron, and to Eleazar and to Ithamar, his sons who were left, “Take the grain offering that remains of the offerings of Yahweh made by fire, and eat it without leaven beside the altar, for it is most holy, and you shall eat it in a holy place, because it is your portion, and your sons' portion, of the offerings of Yahweh made by fire, for so I am commanded.”
The grain offering was ‘most holy'. It was an offering to God ‘made by fire', that is wholly given to God. It was an offering from the people. And as such it must be contained and eaten within the Sanctuary. There it could be eaten by the priests ‘without leaven' (for it must not be marred in any way) in the place where the altar was situated (thus they were seen as eating it as an offering) for it was given to them by God as a portion for their benefit, and they ate it in His name. Because they were God's anointed priests this was seen as God receiving it through them.
So may we through coming to Him and believing on Him partake of Him Who is the bread of life (John 6:35). But we must recognise that what we partake of is ‘most holy'. That we can come to Him daily through faith, continually receiving His power and His fullness (Ephesians 3:16), and having Christ living in us (Galatians 2:20), is something which must never be treated lightly. When we so come we must ensure that there is no ‘leaven' in our lives, nothing that is corrupting, no influence of the world, and we must recognise that He is ours through the altar, that is, through His offering Himself to death for us on the cross (Hebrews 13:10). Without that we could not know Him.
“And the wave breast and the contribution thigh shall you eat in a clean place, you, and your sons, and your daughters with you, for they are given as your portion, and your sons' portion, out of the sacrifices of the peace offerings of the children of Israel. The contribution thigh and the wave breast shall they bring with the offerings made by fire of the fat, to wave it for a wave offering before Yahweh, and it shall be yours, and your sons' with you, as a portion for ever; as Yahweh has commanded.”
However, the wave breast and the contribution thigh of a peace sacrifice are holy but not ‘most holy'. They are the priest's portion of what may be eaten by all who are clean, the flesh of the sacrifice. They must be waved before Yahweh, but then they can feed the priest's family, both male and female as long as it is in a clean place (one not affected by defilement from anything unclean). ‘Your daughters' is an overall reference to all their womenfolk.
In Israel whenever a clean animal, whether ox, or goat or sheep, were to be slain and eaten it had to be done by sacrifice (Leviticus 17:1), and if it were not to be a whole burnt offering, or a purification for sin or guilt offering, then it must be as a peace/wellbeing sacrifice. The offering of the fat by fire to Yahweh meant that it was an offering ‘made by fire', but the type of offering, a peace sacrifice, ensured that the flesh could be eaten by those appointed by the offeror, with the priests receiving the breast and thigh, the latter for the officiating priest. The breast and thigh was the priests' portion ‘for ever' (into the distant future). And it could feed their whole families. The peace sacrifice was the way by which Israel could partake of the meat of clean animals in fellowship with each other and with God, while at the same time suitably expressing their love, penitence and gratitude to God, and contributing by it to the continuing atonement achieved by the priests on behalf of Israel, and it was one way by which the priests received their daily supplies.
These sacrifices would usually occur on special occasions. On the whole, apart from the very wealthy, the Israelites preferred to preserve their valuable livestock and use them to provide milk and clothing. They subsisted more on the milk, and on bread, fruit, honey, berries, and roots, and on what they could hunt, and while in the wilderness on manna and quails. This would be especially so in the wilderness. Note how when they grumbled in the wilderness for lack of food they did not immediately set about eating their livestock.