Flavius Josephus, Antiquities of the Jews
William Whiston, A.M., Ed.

[47] THIS Amon imitated those works of his father which he insolently did when he was young: so he had a conspiracy made against him by his own servants, and was slain in his own house, when he had lived twenty-four years, and of them had reigned two. But the multitude punished those that slew Amon, and buried him with his father, and gave the kingdom to his son Josiah, who was eight years old. His mother was of the city of Boscath, and her name was Jedidah. He was of a most excellent disposition, and naturally virtuous, and followed the actions of king David, as a pattern and a rule to him in the whole conduct of his life. And when he was twelve years old, he gave demonstrations of his religious and righteous behavior; for he brought the people to a sober way of living, and exhorted them to leave off the opinion they had of their idols, because they were not gods, but to worship their own God. And by repeating on the actions of his progenitors, he prudently corrected what they did wrong, like a very elderly man, and like one abundantly able to understand what was fit to be done; and what he found they had well done, he observed all the country over, and imitated the same. And thus he acted in following the wisdom and sagacity of his own nature, and in compliance with the advice and instruction of the elders; for by following the laws it was that he succeeded so well in the order of his government, and in piety with regard to the Divine worship. And this happened because the transgressions of the former kings were seen no more, but quite vanished away; for the king went about the city, and the whole country, and cut down the groves which were devoted to strange gods, and overthrew their altars; and if there were any gifts dedicated to them by his forefathers, he made them ignominious, and plucked them down; and by this means he brought the people back from their opinion about them to the worship of God. He also offered his accustomed sacrifices and burnt-offerings upon the altar. Moreover, he ordained certain judges and overseers, that they might order the matters to them severally belonging, and have regard to justice above all things, and distribute it with the same concern they would have about their own soul. He also sent over all the country, and desired such as pleased to bring gold and silver for the repairs of the temple, according to every one's inclinations and abilities. And when the money was brought in, he made one Maaseiah the governor of the city, and Shaphan the scribe, and Joab the recorder, and Eliakim the high priest, curators of the temple, and of the charges contributed thereto; who made no delay, nor put the work off at all, but prepared architects, and whatsoever was proper for those repairs, and set closely about the work. So the temple was repaired by this means, and became a public demonstration of the king's piety.