20. Priests must never shave their heads when they are mourning. But they must keep their hair properly trimmed and not let it grow too long.
21. They must not drink wine before going to the inner courtyard.
22. A priest must not marry a divorced woman; he can marry only a virgin from Israel or the widow of another priest.
23. Priests must teach my people the difference between what is sacred and what is ordinary, and between what is clean and what is unclean.