Albert Barnes Commentary 1 Chronicles 26:30

"Of the Hebronites, Hashabiah and his brethren, men of valor, a thousand and seven hundred, had the oversight of Israel beyond the Jordan westward, for all the business of Jehovah, and for the service of the king." — 1 Chronicles 26:30 (ASV)

The “business of the Lord” in the provinces would consist especially in the collection of the tithes, the redemption-money, and the free-will offerings of the people. It may perhaps have included some religious teaching (compare 2 Chronicles 17:7–9).