Leviticus 8:33
And ye shall not go out of the door of the tabernacle of the testimony in seven days, until the day that the days of your consecration are fulfilled; because for seven days ye shall be consecrated.
Exodus 29:35
And thus shalt thou do unto Aaron and to his sons, according to all the things which I have commanded thee; for seven days shalt thou consecrate them.
Exodus 29:30
And for seven days the priest of his sons, who in his stead shall come into the tabernacle of the testimony, shall put them on to serve in the sanctuary.
Leviticus 14:8
And he that is to be purified shall wash his clothes and shave off all his hair and wash himself with water, and he shall be clean; and after that he shall come into the camp and shall dwell outside of his tent seven days.
Numbers 19:12
They shall remove the sin from themselves with that water on the third day, and on the seventh day they shall be clean; but if they do not remove the sin from themselves the third day, then the seventh day they shall not be clean.
Ezekiel 43:25-27
Seven days shalt thou prepare each day a he goat as sin; and a young bullock and a ram out of the flock, without blemish, shall they sacrifice.