Leviticus 8:33; Leviticus 8:35

33 "You shall not go outside the doorway of the tent of meeting for seven days, until the day that the period of your ordination is fulfilled; for he will ordain you through seven days.

35 "At the doorway of the tent of meeting, moreover, you shall remain day and night for seven days and keep the charge of the LORD , so that you will not die, for so I have been commanded."