Priest: Duties of Responsible for the Sanctuary
Source: Nav
Numbers 4:5–15
Whenever the camp sets out, Aaron and his sons are to go in, take down the veil of the curtain, and cover the ark of the Testimony with it. / They are to place over this a covering of fine leather, spread a solid blue cloth over it, and insert its poles. / Over the table of the Presence they are to spread a blue cloth and place the plates and cups on it, along with the bowls and pitchers for the drink offering. The regular bread offering is to remain on it.
Numbers 18:1, 5, 7
So the LORD said to Aaron, “You and your sons and your father’s house must bear the iniquity involving the sanctuary. And you and your sons alone must bear the iniquity involving your priesthood. / And you shall attend to the duties of the sanctuary and of the altar, so that wrath may not fall on the Israelites again. / But only you and your sons shall attend to your priesthood for everything concerning the altar and what is inside the veil, and you are to perform that service. I am giving you the work of the priesthood as a gift, but any outsider who comes near the sanctuary must be put to death.”