1 Chronicles 9:25

Their relatives in their villages were to come in every seven days from time to time to be with them;

2 Kings 11:5

He commanded them, saying, “This is the thing that you shall do: a third of you who come in [reporting for duty] on the Sabbath shall keep watch over the king’s house

2 Chronicles 23:8

So the Levites and all Judah acted in accordance with everything that Jehoiada the priest had commanded; and every man took his men who were to resume duty on the Sabbath, with those who were to go off duty on the Sabbath, for Jehoiada the priest did not dismiss [any of] the divisions [from their duties].

2 Kings 11:7

Two units of you, all those who go out [off duty] on the Sabbath, shall also keep watch over the house (temple) of the Lord for [the protection of] 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
He commanded them, saying, “This is the thing that you shall do: a third of you who come in [reporting for duty] on the Sabbath shall keep watch over the king’s house
2 Chronicles 23:8
So the Levites and all Judah acted in accordance with everything that Jehoiada the priest had commanded; and every man took his men who were to resume duty on the Sabbath, with those who were to go off duty on the Sabbath, for Jehoiada the priest did not dismiss [any of] the divisions [from their duties].