Leviticus 8:33
You shall not go out of the door of the tabernacle of the congregation seven days, until the days of your consecration are at an end. For He shall consecrate you seven days.
Exodus 29:35
And so you shall do to Aaron and to his sons according to all things which I have commanded you. You shall consecrate them seven days.
Exodus 29:30
The one of his sons that is priest in his place shall put them on seven days, when he comes into the tabernacle of the congregation to minister in the holy place.
Leviticus 14:8
And he that is to be cleansed shall wash his clothes, and shave off all his hair, and wash himself in water so that he may be clean. And after that he shall come into the camp, and shall stay outside his tent seven days.
Numbers 19:12
He shall purify himself with it on the third day, and on the seventh day he shall be clean. But if he does not purify himself the third day, then the seventh day he shall not be clean.
Ezekiel 43:25-27
Every day for seven days you shall prepare a goat for a sin offering. They also shall prepare a young bull, and a ram out of the flock, without blemish.