'On the Sabbath' in the Bible

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;

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.

And the captains of the hundreds 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, and they came to Jehoiada the priest.