Leviticus 10 assigns priests the duty to distinguish holy from common, unclean from clean, and to teach Israel YHWH’s statutes. The conclusion of the skin-affliction laws in Leviticus 14 states a matching purpose: teaching when something is unclean and when it is clean. The later diagnostic material therefore puts the priestly teaching-and-distinguishing commission into concrete practice.

Leviticus assigns priests the responsibility to distinguish holy from common and clean from unclean and to teach Israel YHWH’s statutes. Malachi later says the priest’s lips should preserve knowledge and people should seek Torah from his mouth, then condemns priests who have corrupted that teaching vocation.

Ezekiel's priestly legislation repeats both the wine restriction when entering the inner court and the duty to teach the difference between holy/common and clean/unclean, strongly developing Leviticus 10:8–11.