1 Chronicles 23:29-31

29and with the showbread, and the fine flour for a grain offering, and unleavened wafers, or what is baked in the pan or what is well-mixed, and all measures of volume and size [as the Law of Moses required].

30They are to stand every morning to thank and praise the Lord, and likewise at evening,

31and to offer all burnt sacrifices to the Lord on the Sabbaths, the new moons, and the festivals by number according to the ordinance concerning them, continually before the Lord.