1 Chronicles 16:37-40

So David left Asaph and his relatives there before the ark of the covenant of the LORD to minister before the ark continually, as each day’s work required; and Obed-edom with his sixty-eight relatives; also Obed-edom the son of Jeduthun, and Hosah, were to be gatekeepers. David left Zadok the priest and his relatives the priests before the dwelling place (tabernacle) of the LORD in the high place which was at Gibeon, [1 Chr 21:29] to offer burnt offerings to the LORD on the altar of burnt offering continually, morning and evening, in accordance with all that is written in the Law of the LORD, which He commanded Israel.