'Duty' in the Bible

and commanded them, “This is what you are to do: a third of you who come on duty on the Sabbath are to provide protection for the king’s palace.

“Your two divisions that go off duty on the Sabbath are to provide protection for the Lord’s temple.

So the commanders of hundreds did everything Jehoiada the priest commanded. They each brought their men—those coming on duty on the Sabbath and those going off duty—and went to Jehoiada the priest.

He took a court official who had been appointed over the warriors from the city; five trusted royal aides found in the city; the secretary of the commander of the army, who enlisted the people of the land for military duty; and 60 men from the common people who were found within the city.