From the Izharites, Chenaniah and his sons had the outside duties as officers and judges over Israel.
All the offices of the house of God being well provided with Levites, we have here an account of those that were employed as officers and judges in the outward business, which must not be neglected, no, not for the temple itself. The magistracy is an ordinance of God for the good of the church as truly as the ministry is. And here we are told, 1.
Commenting on 1 Chronicles 26:29-32
OFFICERS AND JUDGES. (Ch1 26:29-32) officers and judges--The word rendered "officers" is the term which signifies scribes or secretaries, so that the Levitical class here described were magistrates, who, attended by their clerks, exercised judicial functions; there were six thousand of them (Ch1 23:4), who probably acted like their brethren on the principle of rotation, and these were divided into three classes--one (Ch1 26:29) for...
Of the Izharites, Chenaniah and his sons [were] for the outward business over Israel, for officers and judges. (n) Meaning of things that were out of the city.