The instructions God gave Moses for these sacrifices were of utmost importance not only because it was God who had initiated them, but also because of the symbols they represented. Each one pictured an aspect of Jesus’ finished work and the resulting joys of salvation & sanctification which every “willing” heart could experience.
Lev. 7:35-38 “This is the portion of the anointing of Aaron, and of the anointing of his sons, out of the offerings of the LORD made by fire, in the day when he presented them to minister unto the LORD in the priest's office; Which the LORD commanded to be given them of the children of Israel, in the day that he anointed them, by a statute for ever throughout their generations. This is the law of the burnt offering, of the meat offering, and of the sin offering, and of the trespass offering, and of the consecrations, and of the sacrifice of the peace offerings; 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.”
LESSON - Our acts of worship should not be offered to God out of an attitude of convenience, but out of a heart of consecrated sacrifice. These pictures of Christ‘s work still remain with us today and are to be expressed in our worship services as memorials of thanksgiving (v12). If we fail to remember what Jesus has done, the next generations will never know of His work nor experience the joys of salvation & sanctification first hand! We may no longer have ceremonial laws from God to follow, but we should always remember the heart of the One who gave them to us.