Matthew Poole and continuators on Nehemiah 11:24

24 And Pethahiah the son of Meshezabeel, of the children of Zerah the son of Judah, was at the kings hand in all matters concerning the people .

Or, on the kings part, to determine Civil Causes and Controversies between Man and Man, by the Laws of that Kingdom; which peradventure he understood better than Nehemiah, and therefore was appointed for this work, but still under Nehemiah. Or, according to the kings appointment, as the hand is used, as Numb. 4. 49. and elsewhere.

Either in civil differences between them: or in things between the King and People; as in matters of Tribute, or Grievances, &c. wherein this man possibly was chief Justitiary under Nehemiah.