Leviticus 10:11
Ver. 11. And that ye may teach the children of Israel all the statutes,.... Laws, precepts, ordinances, moral, ceremonial, and judicial, which was the business of the priests to do, Mal 2:7 but one inebriated with liquor would be incapable of giving instructions about any of those things:
which the Lord hath spoken unto them by the hand of Moses: particularly those delivered and recorded in Ex 20:1 and as not the priests, so neither any other Israelite might instruct {s}, nor indeed would be capable of instructing others when in liquor; and therefore excessive drinking, as it should be carefully avoided by all men, so more especially by those who by their office are teachers of others; see Pr 31:4.
{s} Maimon. Hilchot Biath Hamikdash, c. 1. sect. 3.