2 Chronicles 23:4-6

Complete Jewish Bible

⁴ Here is what you are to do: of you cohanim and L’vi’im who come on duty on Shabbat, a third are to guard the gates, ⁵ a third the royal palace and a third the Gate of the Foundation; while all the people are to remain in the courtyards of the house of Adonai. ⁶ No one is to enter the house of Adonai except the cohanim and those L’vi’im who are actually performing the service. These may enter, because they are holy; but all the people are to observe Adonai’s order.