The Lord tells Aaron and his sons to treat the holy offerings with respect, so as not to profane his name. A priest who is unclean, for example with a skin disease or a discharge, or from touching something unclean, may not eat of the holy things until he has bathed and waited until evening. It also says who may eat: slaves bought with money and those born in the house, a daughter who is widowed or divorced and returns without children. A stranger, a guest and a hired worker may not. Whoever eats a holy thing unintentionally must make restitution with an added fifth.
The second part deals with what is offered: animals for burnt offerings and peace offerings must be males without blemish, not blind, broken, mutilated or with sores. A freewill offering may be accepted with a slight defect in some cases, but not a vow offering. An animal with damaged testicles is not offered to the Lord. This applies also to foreigners who offer.
A newborn calf, lamb or kid must stay seven days with its mother and from the eighth day is acceptable. A cow or ewe is not slaughtered with its young on the same day. The thanksgiving offering is eaten the same day. The chapter ends by urging them to keep the commandments and recalling that the Lord brought them out of Egypt to be their God.