Yahweh commands Moses to arrange the clans of the Levites around the tent of meeting and assigns them responsibilities.
Yahweh commands Moses and Aaron to divide the Israelites according to tribe and count the fighting aged men. The total is 603,550. The Levites are counted separately as keepers of the tabernacle.
Yahweh commands Aaron to make a sacrificial offering for his family to atone for their sins and instructions how Aaron can approach the Holy of Holies.
Aaron’s sons Nadab and Abihu break the rituals commanded by Yahweh and are struck down. Moses scolds Aaron and his sons on following their duties as priests.
After 7 days of consecration, Moses commands Aaron and his sons to make offerings at the alter. Fire appears and consumes the offerings.
Yahweh commands Moses to assemble Aaron and his son’s for their ordination as priests. Moses completes the ordination as Yahweh commands.
Yahweh instructs the Israelites to prepare the fellowship offering. A portion of the fellowship offering is for the priests.
Yahweh gives instructions for Aaron and his sons to accept burnt offerings, grain offerings, and sin offerings.
Yahweh instructs the Israelites to make offerings of atonement for unintentionally breaking His commands: for the priests, for the whole community, for a leader, and for a lay person.
Yahweh instructs the Israelites how to present an offering of grain for the tabernacle altar, giving a portion to Aaron and his sons. Aaron and his sons are busy with their priestly duties and don’t have time to plant and harvest their own food.