Leviticus 10:9-10

“Do not drink wine or intoxicating drink, neither you nor your sons with you, when you come into the Tent of Meeting, so that you will not die—it is a permanent statute throughout your generations— and to make a distinction and recognize a difference between the holy (sacred) and the common (profane), and between the [ceremonially] unclean and the clean; [Ezek 44:23]