Leviticus 7:38
Which the LORD commanded Moses in mount Sinai, in the day that he commanded the children of Israel to offer their oblations unto the LORD, in the wilderness of Sinai. Which the LORD commanded Moses in mount Sinai, in the day that he commanded the children of Israel to offer their oblations unto the LORD, in the wilderness of Sinai.
This closing verse gathers up the instructions for the burnt, meal or grain, peace, sin, trespass, and consecration offerings, each with its own purpose and manner of offering, as commanded by the Lord to Moses on Mount Sinai in the wilderness of Sinai in the day the children of Israel were commanded to bring their oblations to the Lord. The individual offerings described in Leviticus 1-7 formed part of the regular priestly ministry of the earthly sanctuary. The offering law was made known not by God speaking directly to the people, but by the Lord commanding Moses, with Moses then speaking to the children of Israel, from the tabernacle of the congregation, about bringing their oblations.
The instructions in Leviticus 3-7 are the ceremonial law, a remedial system instituted because of sin that prescribes the remedy for sin and is distinct from the moral law that identifies sin as transgression; the sin offering presupposes a violated moral law that made sin and the offering necessary. The laws of sacrifice have meaning in their details, and their fuller meaning is found in Christ's sacrifice, life, and work; the sacrifices contain types of the work of Jesus Christ, and the sanctuary's daily and yearly services pointed forward to their fulfillment in him. Offerings brought by individuals expressed faith in the coming Redeemer. The Levitical sanctuary built in the wilderness, with its priesthood and services, was a type of Christ's priesthood in the heavenly sanctuary, and its yearly cycle of services represented Christ's once-for-all ministry, including the cleansing of the sanctuary as a judgment work. The individual offerings in Leviticus 7, when offered in faith by the sinner together with the daily offering, transferred in figure through the blood of the sacrifice or the person of the priest the sins of the penitent to the sanctuary; when the priest sprinkled the blood upon the altar before the ark he left there in figure the forgiven sins of God's people, and this transferring work went on through the year until the cleansing of the sanctuary on the tenth day of the seventh month.