1 Esdras 1:14-16

New Revised Standard Version, Anglicised

¹⁴ because the priests were offering the fat until nightfall; so the Levites prepared it for themselves and for their kindred the priests, the sons of Aaron. ¹⁵ The temple singers, the sons of Asaph, were in their place according to the arrangement made by David, and also Asaph, Zechariah, and Eddinus, who represented the king. ¹⁶ The gatekeepers were at each gate; no one needed to interrupt his daily duties, for their kindred the Levites prepared the passover for them.