2 Chronicles 23:2-6

2These men traveled secretly throughout Judah and summoned the Levites and clan leaders in all the towns to come to Jerusalem.

3They all gathered at the Temple of God, where they made a solemn pact with Joash, the young king. Jehoiada said to them, “Here is the king’s son! The time has come for him to reign! The Lord has promised that a descendant of David will be our king.

4This is what you must do. When you priests and Levites come on duty on the Sabbath, a third of you will serve as gatekeepers.

5Another 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.

6Remember, 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.