2 Chronicles 23:4

Now this [is] the thing which ye shall do. Let a third part of you, [even] of the priests and of the Levites, enter in on the sabbath, even into the gates of the entrances;

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;

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.