The Levites and all Judah did according to all that Jehoiada the priest commanded, and they each brought his men, who were to go off duty on the Sabbath, with those who were to come on duty on the Sabbath, for Jehoiada the priest did not dismiss the divisions.
We may well imagine the bad posture of affairs in Jerusalem during Athaliah's six years' usurpation, and may wonder that God permitted it and his people bore it so long; but after such a dark and tedious night the returning day in this revolution was the brighter and the more welcome.
Commenting on 2 Chronicles 23:1-11
Jehoiada . . . dismissed not the courses--As it was necessary to have as large a disposable force as he could command on such a crisis, the high priest detained those who, in other circumstances, would have returned home on the expiry of their week of service.
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. (e) Who had finished their course on the Sabbath and so the other part entered to keep their turn.