2 Chronicles 23:4-10

This is what you must do. When you priests and Levites come on duty on the Sabbath, a third of you will serve as gatekeepers. Another third will go over to the royal palace, and the final third will be at the Foundation Gate. Everyone else should stay in the courtyards of the LORD’s Temple. Remember, only the priests and Levites on duty may enter the Temple of the LORD, for they are set apart as holy. The rest of the people must obey the LORD’s instructions and stay outside. You Levites, form a bodyguard around the king and keep your weapons in hand. Kill anyone who tries to enter the Temple. Stay with the king wherever he goes.” So the Levites and all the people of Judah did everything as Jehoiada the priest ordered. The commanders took charge of the men reporting for duty that Sabbath, as well as those who were going off duty. Jehoiada the priest did not let anyone go home after their shift ended. Then Jehoiada supplied the commanders with the spears and the large and small shields that had once belonged to King David and were stored in the Temple of God. He stationed all the people around the king, with their weapons ready. They formed a line from the south side of the Temple around to the north side and all around the altar.