Exodus 29:35-37
And thus shall you do to Aaron, and to his sons, according to all things which I have commanded you: seven days shall you consecrate them.
Torrey's Topical Textbook—AKJV

Leviticus 8:33
And you shall not go out of the door of the tabernacle of the congregation in seven days, until the days of your consecration be at an end: for seven days shall he consecrate you.
Torrey's Topical Textbook—AKJV