2 Chronicles 23:4 in the King James Version
This is the thing that ye shall do; A third part of you entering on the sabbath, of the priests and of the Levites, shall be porters of the doors;
Context
3 All the assembly made a covenant with the king in God’s house. Jehoiada said to them, “Behold, the king’s son must reign, as the LORD has spoken concerning the sons of David.
4 This is the thing that you must do: a third part of you, who come in on the Sabbath, of the priests and of the Levites, shall be gatekeepers of the thresholds.
5 A third part shall be at the king’s house; and a third part at the gate of the foundation. All the people will be in the courts of the LORD’s house.