~ according to their service ~ 04_NUM_07_07  Two wagons and four oxen he gave unto the sons of Gershon, according to their service, #, 13_1CH_25_01  Moreover David and the captains of the host separated to the service of the sons of Asaph, and of Heman, and of Jeduthun, who should prophesy with harps, with psalteries, and with cymbals, and the number of the workmen according to their service was, #,