1 Chronicles 25:6-8

Young's Literal Translation

⁶ All these [are] by the side of their father in the song of the house of Jehovah, with cymbals, psalteries, and harps, for the service of the house of God; by the side of the king [are] Asaph, and Jeduthun, and Heman.

⁷ And their number, with their brethren -- taught in the song of Jehovah, all who are intelligent -- is two hundred, eighty and eight.

⁸ And they cause to fall lots -- charge over-against [charge], as well the small as the great, the intelligent with the learner.