2 Chronicles 23:4-6

New International Version

⁴ Now this is what you are to do: A third of you priests and Levites who are going on duty on the Sabbath are to keep watch at the doors, ⁵ a third of you at the royal palace and a third at the Foundation Gate, and all the others are to be in the courtyards of the temple of the Lord. ⁶ No one is to enter the temple of the Lord except the priests and Levites on duty; they may enter because they are consecrated, but all the others are to observe^(A) the Lord’s command not to enter.^[a]