Leviticus 10:9-11

When the priest was on duty he was to abstain from wine and strong drink, lest he should commit excess (see Leviticus 10:1), and so become disqualified for carrying out the precepts of the ceremonial Law.

Leviticus 10:9

Strong drink - The Hebrew word is employed here to denote strong drinks of any kind except wine made from the grape.

Leviticus 10:10

Unholy ... unclean - Common, as not consecrated; and what would occasion defilement by being touched or eaten. Compare Acts 10:14.

Leviticus 10:11

That is, “that you may, by your example in your ministrations, preserve the minds of the Israelites from confusion in regard to the distinctions made by the divine Law.”