'Offices' in the Bible

And David distributed them, both Zadok of the sons of Eleazar, and Ahimelech of the sons of Ithamar, according to their offices in their service.

These were their offices for their ministry when they came in to the house of the Lord according to the ordinance given to them through Aaron their father, just as the Lord God of Israel had commanded him.

And they cast lots for their offices, all alike, as well the small as the great, the teacher as the scholar.

Of these were the courses of the doorkeepers, even of the chief men, having offices like their brethren, to minister in the house of Jehovah.