This is the law of the burnt offering, of the grain offering, of the sin offering, of the guilt offering, of the ordination offering, and of the peace offering, Leviticus 7:37 (ESV)
At the close of this section in Leviticus we get a summary of all 6 types of sacrifice described, all of which pointed forward to Jesus. This whole section (chapter 1-7) serves to remind us that worship in the church and our lives must be done in order and holiness.
And he killed it, and Moses took some of its blood and put it on the lobe of Aaron’s right ear and on the thumb of his right hand and on the big toe of his right foot. Leviticus 8:23 (ESV)
We need the blood of Jesus on our ears so we always hear (listen) to the voice of God, hands to carry out (work) Gods commands and the feet to walk (act, behave) in holiness.
And Moses and Aaron went into the tent of meeting, and when they came out they blessed the people, and the glory of the LORD appeared to all the people. Leviticus 9:23 (ESV)
Gods glory was revealed as a stamp of approval for the newly built tabernacle, sacrifice system and most of all Arron as a mediator and his sons as priests. This again prefigures Jesus who is our high priest, who in entering his ministry after his sacrifice, revealed to us the glory of God’s indwelling presence on the day of Pentecost when the Holy Spirit was given.
Then Moses said to Aaron, “This is what the LORD has said: ‘Among those who are near me I will be sanctified, and before all the people I will be glorified.’ ” And Aaron held his peace. Leviticus 10:3 (ESV)
Ministry should not be undertaken or done lightly, God is holy and must be ministered to in holiness. Strange fire can represent anything we bring before The Lord which is itself not holy or just a cloak for our sinful attitude etc
You are to distinguish between the holy and the common, and between the unclean and the clean, and you are to teach the people of Israel all the statutes that the LORD has spoken to them by Moses.” Leviticus 10:10–11 (ESV)
As believers we too have been called to be priests, so we are called to be holy, this means we need to clearly distinguish between that which is holy and not, this discernment comes from Godds word and his Holy Spirit. We are also called to teach by our lifestyle and words. We are set apron to minister to God but also to be a witness.
The officers answered, “No one ever spoke like this man!” John 7:46 (ESV)
Even the temple soldiers (These were not like the roman soldiers, they were actually chosen from the levites and so had religious training, which means the teaching of Jesus would have impacted them all the more) had to recognise the unparalleled wisdom of Jesus. Jesus is the Word incarnate, no one will ever compare to him in wisdom or speech. Even today many recognise the wisdom of Jesus but do not submit to him which is itself not wise. As CS Lewis said he can not just be a good teacher, the things Jesus said means he can only be a liar, a lunatic or LORD.