1 Chronicles 23:4

As for the Izharites, Chenaniah and his sons were assigned to the outside work for Israel, as officers and judges.

Now in the second year of their coming to the house of God at Jerusalem in the second month, Zerubbabel the son of Shealtiel and Jeshua the son of Jozadak and the rest of their brothers the priests and the Levites, and all who came from the captivity to Jerusalem, began the work and appointed the Levites from twenty years and older to direct the work of the house of Yahweh.

“And in a dispute, they shall take their stand to judge; they shall judge it according to My judgments. They shall also keep My laws and My statutes in all My appointed times and keep My sabbaths holy.