2 Chronicles 23:8

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

Cross-references

2 Chronicles 31:2 describes Hezekiah appointing priestly divisions for temple service, echoing Jehoiada's earlier organization of Levites.

2 Kings 11:9 gives the identical account of Jehoiada's orders, confirming the same event from another historical source.

1 Chronicles 9:25 explains the weekly rotation of gatekeepers, matching the main verse's mention of those coming on and off duty on the Sabbath.

1 Chronicles 24:19 details the priestly divisions and their service in the temple, directly relating to the organized divisions in the main verse.