Leviticus 10:8-10

New Revised Standard Version, Anglicised

⁸ And the Lord spoke to Aaron: ⁹ Drink no wine or strong drink, neither you nor your sons, when you enter the tent of meeting, that you may not die; it is a statute for ever throughout your generations. ¹⁰ You are to distinguish between the holy and the common, and between the unclean and the clean;