2 Chronicles 23:6

⁴Now 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;

⁵and let a third part be in the house of the king; and another third at the middle gate: and all the people in the courts of the Lord’s house.

— 2 Chronicles 23:6 —

⁷And the Levites shall compass the king round about, every man’s weapon in his hand; and whoever else goes into the house shall die: but they shall be with the king when he goes out, and when he comes in.

⁸And the Levites and all Judah did according to all that the priest Jehoiada commanded them, and they took each his men from the beginning of the Sabbath to the end of the Sabbath, for Jehoiada the priest did not dismiss the courses.