Exodus 29:13 gives a specific instruction for the priestly ordination ceremony: certain fatty portions of an animal are to be burned on the altar as part of a sin offering. The verse describes an act of worship that was meant to show that the fattiest and best parts of the sacrifice belonged to God. It was spoken by the LORD to Moses, who was to pass the instructions on to Aaron and his sons as they were set apart to serve as priests.
You shall take all the fat that covers the innards, the cover of the liver, the two kidneys, and the fat that is on them, and burn them on the altar.
Exodus 29:13 (WEB)
What Exodus 29:13 Means
The verse names a precise set of body parts: the fat around the internal organs, the covering of the liver, the two kidneys, and the fat on the kidneys. In ancient Israel, these were regarded as the richest portions of the animal. Burning them on the altar meant giving God the best, not the leftovers, which fits the larger principle that worship costs something and is not an afterthought.
The command is practical and physical. It tells the priests exactly what to take and where to put it, and it does so without explaining the emotional meaning, which the surrounding ritual makes clear. The sacrifice was offered for sin, so the act acknowledged that the people and their priests needed cleansing before they could draw near to a holy God.
What the verse does not do is offer a general lesson about fat, diet, or animal sacrifice in daily life. It is a ceremonial instruction tied to a particular moment in Israel’s history. Christians read it as part of the larger story that leads to Christ, whose once-for-all offering the New Testament presents as the fulfillment of these sacrifices.
The Context of Exodus 29:13
Exodus is traditionally attributed to Moses and tells the story of Israel’s deliverance from Egypt, the covenant at Sinai, and the construction of the tabernacle where God would dwell among his people. Chapter 29 belongs to a longer section giving instructions for ordaining Aaron and his sons as priests. The audience is the nation of Israel, and in this passage the priests in particular.
The verses just before and after describe the bull for the sin offering, with its blood placed on the altar horns and poured out at its base, and then the ram of the burnt offering. Verse 13 sits in the middle of this careful sequence. Reading it in that setting shows that the burning of the fat is one step in a full ritual of atonement and consecration, not an isolated rule about what to eat or discard.
Key Phrases in Exodus 29:13
Hebrews 10:10
By which will we have been sanctified through the offering of the body of Jesus Christ once for all.
(WEB)
This verse explains that believers are made holy through the offering of Jesus Christ once for all. It helps readers see how the repeated sacrifices of the Old Testament pointed toward a single, complete atonement, which gives the ritual instructions of Exodus new meaning.
Leviticus 3:16
The priest shall burn them on the altar: it is the food of the offering made by fire, for a pleasant aroma; all the fat is the LORD’s.
(WEB)
This verse repeats the principle that the fat belongs to the LORD and is to be burned as a pleasing aroma. Reading it alongside Exodus 29:13 shows how seriously Israel’s worship treated these portions as dedicated to God.
A Short Prayer From Exodus 29:13
Lord, you asked for the best of what was offered to you, and you provided a way for sinful people to be cleansed and brought near. Help me give you my best today, not the leftovers of my time, my attention, and my resources. Thank you that the offering that truly takes away sin has been made through Jesus, and that I can come to you with confidence. Teach me to honor you with what I value most. Amen.
