Cross reference
Ezekiel 43:25
25 Seven days shall you prepare every day a goat for a sin-offering: they shall also prepare a young bull, and a ram out of the flock, without blemish.
Leviticus 8:33
33 You shall not go out from the door of the Tent of Meeting seven days, until the days of your consecration are fulfilled: for he shall consecrate you seven days.
Exodus 29:35-37
35 "Thus shall you do to Aaron, and to his sons, according to all that I have commanded you. Seven days shall you consecrate them.
36 Every day shall you offer the bull of sin-offering for atonement: and you shall cleanse the altar, when you make atonement for it; and you shall anoint it, to sanctify it.
37 Seven days you shall make atonement for the altar, and sanctify it: and the altar shall be most holy; whatever touches the altar shall be holy.
Leviticus 8:35
35 At the door of the Tent of Meeting you shall stay day and night seven days, and keep the charge of Yahweh, that you don't die: for so I am commanded."