Leviticus 10:7-9

American Standard Version

⁷ And ye shall not go out from the door of the tent of meeting, lest ye die; for the anointing oil of Jehovah is upon you. And they did according to the word of Moses.

⁸ And Jehovah spake unto Aaron, saying, ⁹ Drink no wine nor strong drink, thou, nor thy sons with thee, when ye go into the tent of meeting, that ye die not: it shall be a statute for ever throughout your generations: