'Sabbath' in the Bible

This is the thing that ye do: The third of you, going in on the sabbath, of the priests, and of the Levites, are for gatekeepers of the thresholds,

And the Levites and all Judah do according to all that Jehoiada the priest hath commanded, and take each his men going in on the sabbath, with those going out on the sabbath, for Jehoiada the priest hath not let away the courses.

to fulfil the word of Jehovah in the mouth of Jeremiah, till the land hath enjoyed its sabbaths; all the days of the desolation it kept sabbath -- to the fulness of seventy years.