1 Chronicles 25:3; 1 Chronicles 25:9

3 Of Jeduthun: the sons of Jeduthun; Gedaliah, and Zeri, and Jeshaiah, Hashabiah, and Mattithiah, six, under the hands of their father Jeduthun, who prophesied with a harp, to give thanks and to praise the LORD.
9 Now the first lot came forth for Asaph to Joseph: the second to Gedaliah, who with his brethren and sons were twelve :