1st Chronicles Chapter 23 Young's Literal Translation
Sons of Amram: Aaron and Moses; and Aaron is separated for his sanctifying the holy of holies, he and his sons -- unto the age, to make perfume before Jehovah, to serve Him, and to bless in His name -- unto the age.
These `are' sons of Levi, by the house of their fathers, heads of the fathers, by their appointments, in the number of names, by their polls, doing the work for the service of the house of Jehovah, from a son of twenty years and upward,
for their station `is' at the side of the sons of Aaron, for the service of the house of Jehovah, over the courts, and over the chambers, and over the cleansing of every holy thing, and the work of the service of the house of God,
and for the bread of the arrangement, and for fine flour for present, and for the thin unleavened cakes, and for `the work of' the pan, and for that which is fried, and for all `liquid' measure and `solid' measure;
and for all the burnt-offerings -- burnt-offerings to Jehovah for sabbaths, for new moons, and for appointed seasons, by number, according to the ordinance upon them continually, before Jehovah.
And they have kept the charge of the tent of meeting, and the charge of the sanctuary, and the charge of the sons of Aaron, their brethren, for the service of the house of Jehovah.