Exodus 29:35
“So you shall do to Aaron and to his sons in accordance with all I have commanded you; during seven days you are to ordain them.
Exodus 29:30
That son who is [high] priest in his place shall put them on [each day for] seven days when he comes into the Tent of Meeting to minister in the Holy Place.
Exodus 29:37
For seven days you shall make atonement for the altar [of burnt offering] and consecrate it; then the altar shall be most holy. Whatever touches the altar must be holy (set apart for God’s service).
Exodus 39:42-43
So the Israelites did all the work according to all that the Lord had commanded Moses.
Exodus 40:12-16
Then you shall bring Aaron and his sons to the doorway of the Tent of Meeting and wash them with water.
Leviticus 8:4-36
Moses did as the Lord commanded him, and the congregation was assembled at the doorway of the Tent of Meeting.
Leviticus 14:8-11
The one to be cleansed shall wash his clothes, shave off all his hair, and bathe in water; and he shall be clean. After that he may come into the camp, but he shall stay outside of his tent for seven days.
John 16:14