1 Esdras 1:15
The holy singers also, the sons of Asaph, were in their order, according to the appointment of David, to wit, Asaph, Zacharias, and Jeduthun, who was of the king’s retinue.
Background and history of 1 Esdras, and issues with this book.
The King James Version (1769), including the Apocrypha, is in the public domain in the United States. Letters patent restrict printing this translation in the United Kingdom.