thus shalt thou do

Exodus 40:12-15
Then bring Aaron and his sons to the entrance of the Tent of Meeting and wash them with water. . . .

Leviticus 8:4
So Moses did as the LORD had commanded him, and the assembly gathered at the entrance to the Tent of Meeting.

according

Exodus 39:42, 43
The Israelites had done all the work just as the LORD had commanded Moses. . . .

Exodus 40:16
Moses did everything just as the LORD had commanded him.

John 16:14
He will glorify Me by taking from what is Mine and disclosing it to you.

seven days

Exodus 29:30, 37
The son who succeeds him as priest and enters the Tent of Meeting to minister in the Holy Place must wear them for seven days. . . .

Exodus 40:12, 13
Then bring Aaron and his sons to the entrance of the Tent of Meeting and wash them with water. . . .

Leviticus 8:33-35
You must not go outside the entrance to the Tent of Meeting for seven days, until the days of your ordination are complete; for it will take seven days to ordain you. . . .

Leviticus 14:8-11
The one being cleansed must wash his clothes, shave off all his hair, and bathe with water, that he may be clean. Afterward, he may enter the camp, but he must remain outside his tent for seven days. . . .