1 Chronicles 25:7-9

New Revised Standard Version, Anglicised

⁷ They and their kindred, who were trained in singing to the Lord, all of whom were skilful, numbered two hundred and eighty-eight. ⁸ And they cast lots for their duties, small and great, teacher and pupil alike.

⁹ The first lot fell for Asaph to Joseph; the second to Gedaliah, to him and his brothers and his sons, twelve;