2 Chronicles 8:13-15
21st Century King James Version
13 according to a certain rate every day, offering according to the commandment of Moses on the Sabbaths and on the new moons and on the solemn feasts, three times in the year: on the Feast of Unleavened Bread and on the Feast of Weeks and on the Feast of Tabernacles.
14 And he appointed, according to the order of David his father, the courses of the priests for their service, and the Levites to their charges to praise and minister before the priests, as the duty of every day required; the gatekeepers also by their courses at every gate, for so had David the man of God commanded.
15 And they departed not from the commandment of the king unto the priests and Levites concerning any matter or concerning the treasurers.Read full chapter