'On the Sabbath' in the Bible

Behold, I am about to build a house for the name of Yahweh my God, to dedicate it to him, and to burn before him incense of sweet spices, and for the continual show bread, and for the burnt offerings morning and evening, on the Sabbaths, and on the new moons, and on the set feasts of Yahweh our God. This is [an ordinance] forever to Israel.

even as the duty of every day required, offering according to the commandment of Moses, on the Sabbaths, and on the new moons, and on the set feasts, three times in the year, [even] in the feast of unleavened bread, and in the feast of weeks, and in the feast of tents.

This is the thing that you shall do. A third part of you, who come in on the Sabbath, of the priests and of the Levites, shall be porters of the thresholds.

So the Levites and all Judah 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; for Jehoiada the priest didn't dismiss the shift.