2 Chronicles 23:4

This it is therefore that ye shall do. The third part of you priests and Levites which come in the Sabbath day, shall keep the doors;

And their brethren that were in the country came in their weeks as their course came about with them.

And the Levites were numbered from thirty years and above, and the tale of them in men, poll by poll, was thirty eight thousand.

And David ordered them on this manner: Zadok of the sons of Eleazar and Ahimelech of the sons of Ithamar to be in office by course.

And they cast lots: the small as well as the great in the households of their fathers, from gate to gate.

And it came to pass, as he executed the priest's office before God as his course came,

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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;

And the Levites were numbered from thirty years and above, and the tale of them in men, poll by poll, was thirty eight thousand.

And David ordered them on this manner: Zadok of the sons of Eleazar and Ahimelech of the sons of Ithamar to be in office by course.

And it came to pass, as he executed the priest's office before God as his course came,

And they cast lots: the small as well as the great in the households of their fathers, from gate to gate.