'On the Sabbath' in the Bible

He commanded them, saying, "This is the thing that you shall do: a third part of you, who come in on the Sabbath, shall be keepers of the watch of the king's house;

The two companies of you, even all who go out on the Sabbath, shall keep the watch of the house of the LORD around the king.

The captains over hundreds did according to all that Jehoiada the priest commanded; and they took every man his men, those who were to come in on the Sabbath, with those who were to go out on the Sabbath, and came to Jehoiada the priest.