Matthew Henry on 2 Chronicles 19:5–end
Jehoshaphat, having done what he could to make his people good, is here providing, if possible, to keep them so by the influence of a settled magistracy. He had sent preachers among them, to instruct them (Ch2 17:7-9), and that provision did well; but now he saw it further requisite to send judges among them, to see the laws put in execution, and to be a terror to evil-doers. It is probable that there were judges up and down the country before, but either they neglected their business or the people slighted them, so that the end of the institution was not answered; and therefore it was necessary it should be new-modelled, new men employed, and a new charge given them. That is it which is her…
Read the whole note in the consoleJamieson-Fausset-Brown on 2 Chronicles 19:5
HIS INSTRUCTIONS TO THE JUDGES. (Ch2 19:5-7)
he set judges in the land--There had been judicial courts established at an early period. But Jehoshaphat was the first king who modified these institutions according to the circumstances of the now fragmentary kingdom of Judah. He fixed local courts in each of the fortified cities, these being the provincial capitals of every district (see on Deu 16:18).
Adam Clarke on 2 Chronicles 19:4
From Beer-sheba to Mount Ephraim - Before the separation of the ten tribes, in speaking of the extent of the land it was said, From Dan to Beer-sheba; but since that event, the kingdom of Judah was bounded on the south by Beer-sheba, and on the north by the mountains of Ephraim. This shows that Jehoshaphat had gone through all his territories to examine every thing himself, to see that judgment and justice were properly administered among the people.
John Gill on 2 Chronicles 19:5
And he set judges in the land throughout all the fenced cities of Judah, city by city,.... Inferior judges in lesser courts of judicature than that at Jerusalem, and that in every city, that judgment and justice might be executed everywhere; such were appointed by David, but had been neglected, and now restored, see 1 Chronicles 26:29.