1 Chronicles 16:35-43
English Standard Version
37So David left Asaph and his brothers there before the ark of the covenant of the Lord to minister regularly before the ark as each day required,
38and also Obed-edom and his sixty-eight brothers, while Obed-edom, the son of Jeduthun, and Hosah were to be gatekeepers.
39And he left Zadok the priest and his brothers the priests before the tabernacle of the Lord in the high place that was at Gibeon
40to offer burnt offerings to the Lord on the altar of burnt offering regularly morning and evening, to do all that is written in the Law of the Lord that he commanded Israel.
41With them were Heman and Jeduthun and the rest of those chosen and expressly named to give thanks to the Lord, for his steadfast love endures forever.
42Heman and Jeduthun had trumpets and cymbals for the music and instruments for sacred song. The sons of Jeduthun were appointed to the gate.