2 Chronicles 23:6-8

Complete Jewish Bible

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. ⁷ The L’vi’im are to surround the king, each man with his weapons in his hand. Anyone who enters the house is to be killed. Stay with the king whenever he enters or leaves.”

⁸ The L’vi’im and all Y’hudah did exactly as Y’hoyada the cohen ordered. Each took his men, those coming on duty on Shabbat and those going off duty on Shabbat (for Y’hoyada the cohen did not dismiss the divisions).