1 Chronicles 9:25

And their brethren, in their villages, were to come after every seven days from time to time with them.

2 Kings 11:5

And he commanded them saying, This is the thing which ye shall do: a third part of you, that come in on the sabbath, shall be keepers of the watch of the king's house;

2 Chronicles 23:8

And 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 them that were to go forth on the sabbath; for Jehoiada the priest did not liberate the divisions.

2 Kings 11:7

And the two parts of you, all those that go forth on the sabbath, even they shall keep the watch of the house of Jehovah about the king.

Treasury of Scripture Knowledge

Summary

And their brethren, which were in their villages, were to come after seven days from time to time with them.

Bible References

Seven

2 Kings 11:5
And he commanded them saying, This is the thing which ye shall do: a third part of you, that come in on the sabbath, shall be keepers of the watch of the king's house;
2 Chronicles 23:8
And 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 them that were to go forth on the sabbath; for Jehoiada the priest did not liberate the divisions.