“Aaron remained silent” after Nadab and Abihu were killed by fire for their unauthorized offering. Sadly, they defied orders and died as a result. Aaron was left with two sons that made another mistake, but apparently not at the same level of significance. Moses was angry with Eleazar and Ithamar, but Aaron spoke in their defense:
“Today they sacrificed their sin offering and their burnt offering before the Lord, but such things as this have happened to me. Would the Lord have been pleased if I had eaten the sin offering today?” When Moses heard this, he was satisfied. Leviticus 10:19-20
Clean and Unclean Food
Lots of rules about what you can and cannot eat, for example, “you may eat any animal that has a divided hoof and that chews the cud…creatures living in the water…that have fins and scales,” etc.
Purification After Childbirth and Regulations About Defiling Skin Diseases and Molds
The narrative here seems to be one of a practical nature. It’s interesting that these ancient ancestors are fully aware of all kinds of diseases. Given that they are living in a wandering communal environment, I suppose these are all really useful rules that limit the spread of disease or contamination. It would be interesting to know how medical professionals read this section.