'Sabbath' in the Bible

This is what you are to do: let a third of you, of the priests and Levites, who come in on the Sabbath, keep the doors

So the Levites and all Judah did as Jehoiada the priest had given them orders: every one took with him his men, those who were to come in and those who were to go out on the Sabbath; for Jehoiada had not sent away the divisions.

And he gave the king's part of his private property for the burned offerings, that is, for the morning and evening offerings, and the offerings for the Sabbath and the new moons and the regular feasts, as it is recorded in the law of the Lord.

So that the words of the Lord, which he said by the mouth of Jeremiah, might come true, till the land had had pleasure in her Sabbaths; for as long as she was waste the land kept the Sabbath, till seventy years were complete.