1 Chronicles 9:29-34
9:29 Some of them were in charge of the equipment and articles of the sanctuary, as well as the flour, wine, olive oil, incense, and spices.
9:30 (But some of the priests mixed the spices.)
9:31 Mattithiah, a Levite, the firstborn son of Shallum the Korahite, was in charge of baking the bread for offerings.
9:32 Some of the Kohathites, their relatives, were in charge of preparing the bread that is displayed each Sabbath.
9:33 The musicians and Levite family leaders stayed in rooms at the sanctuary and were exempt from other duties, for day and night they had to carry out their assigned tasks.
9:34 These were the family leaders of the Levites, as listed in their genealogical records. They lived in Jerusalem.