‏ 2 Chronicles 35:4-5

4Prepare yourselves aaccording to your fathershouses by your divisions, bas prescribed in the writing of David king of Israel cand the document of Solomon his son. 5And dstand in the Holy Place eaccording to the groupings of the fathershouses of your brothers the lay people, and according to the division of the Levites by fathershousehold.
Copyright information for ESV