Leviticus 8:33-36

33And ye shall not go out from the entrance of the tent of meeting seven days, until the day when the days of your consecration are at an end: for seven days shall ye be consecrated. 34As he hath done this day, [so] Jehovah hath commanded to do, to make atonement for you. 35And ye shall abide at the entrance of the tent of meeting day and night seven days, and keep the charge of Jehovah, that ye die not; for so I am commanded. 36And Aaron and his sons did all things that Jehovah had commanded by the hand of Moses.