1 Chronicles 9:25

And their brethren that were in the country came in their weeks as their course came about with them.

2 Kings 11:5

And he commanded them, saying, "This is that ye must do: one third part of you shall come on the Sabbath day and keep the watch of the king's house;

2 Chronicles 23:8

And the Levites and all Judah did in all things as Jehoiada the priest commanded, and took every man his men: both them that came in and them that went out the Sabbath day: for Jehoiada the priest did let none of the companies depart.

2 Kings 11:7

and two portions of you - that is, all that go out the Sabbath day - shall keep the watch of the house of the LORD 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 that ye must do: one third part of you shall come on the Sabbath day and keep the watch of the king's house;
2 Chronicles 23:8
And the Levites and all Judah did in all things as Jehoiada the priest commanded, and took every man his men: both them that came in and them that went out the Sabbath day: for Jehoiada the priest did let none of the companies depart.