'Service' in the Bible

then ceased the service of the house of God that is in Jerusalem, and it ceased till the second year of the reign of Darius king of Persia.

and they have established the priests in their divisions, and the Levites in their courses, over the service of God that is in Jerusalem, as it is written in the book of Moses.

'And the vessels that are given to thee, for the service of the house of thy God, make perfect before the God of Jerusalem;

and from the Nethinim, whom David and the heads gave for the service of the Levites, two hundred and twenty Nethinim, all of them defined by name.