2 Chronicles 23:6

3 And all the assembly made a covenant with the king in the house of God. And he said unto them, Behold, the king’s son shall reign, as Jehovah hath spoken concerning the sons of David.

4 This is the thing that ye shall do: a third part of you, that come in on the sabbath, of the priests and of the Levites, shall be porters of the thresholds;

5 and a third part shall be at the king’s house; and a third part at the gate of the foundation: and all the people shall be in the courts of the house of Jehovah.

6 But let none come into the house of Jehovah, save the priests, and they that minister of the Levites; they shall come in, for they are holy: but all the people shall keep the charge of Jehovah.

7 And the Levites shall compass the king round about, every man with his weapons in his hand; and whosoever cometh into the house, let him be slain: and be ye with the king when he cometh in, and when he goeth out.

8 So the Levites and all Judah did according to all that Jehoiada the priest commanded: and they took every man his men, those that were to come in on the sabbath, with those that were to go out on the sabbath; for Jehoiada the priest dismissed not the courses.

9 And Jehoiada the priest delivered to the captains of hundreds the spears, and bucklers, and shields, that had been king David’s, which were in the house of God.