"8 And the LORD spake unto Aaron, saying, 9 Do not drink wine nor strong drink, thou, nor thy sons with thee, when ye go into the tabernacle of the congregation, lest ye die: it shall be a statute for ever throughout your generations: 10 And that ye may put difference between holy and unholy, and between unclean and clean; 11 And that ye may teach the children of Israel all the statutes which the LORD hath spoken unto them by the hand of Moses." — Leviticus 10:8-11 KJV.
THE PRIESTS FORBIDDEN WINE AND STRONG DRINK, 8-11.
11. That ye may teach — The priest was the earliest religious teacher of the Levitical law, “for the priest’s lips should keep knowledge, and they should seek the law at his mouth.” Malachi 2:7. The two sides of the priestly vocation, teaching and offering, are embraced in Deuteronomy 33:10. The Pentateuch knows nothing of a scholastic inculcation of the divine laws; it knows no formal religious instruction at all except the reading of the law before the assembled people, at the feast of tabernacles, in the Sabbatic year. Deuteronomy 31:10-13. All religious teachers should be τελειοι, perfect, having their senses — internal and external — exercised to discern or discriminate both good and evil. Hebrews 5:14. Wine draws a film over the spiritual eye and confounds moral distinctions. If the priests have aught to do with wine in a lawful way, it is only that it may, in the holy place,” be poured unto the Lord for a drink offering.” Numbers 28:7. Wine symbolizes joy. The joy of all believers is not the joy of earth but of heaven — of the sanctuary. “The joy of the Lord is your strength.”