The Law of Moses: Good Kings Enforced
Source: TTT
2 Kings 23:24, 25
Furthermore, Josiah removed the mediums and spiritists, the household gods and idols, and all the abominations that were seen in the land of Judah and in Jerusalem. He did this to carry out the words of the law written in the book that Hilkiah the priest had found in the house of the LORD. / Neither before nor after Josiah was there any king like him, who turned to the LORD with all his heart and with all his soul and with all his strength, according to all the Law of Moses.
2 Chronicles 31:21
He was diligent in every work that he began in the service of the house of God, and in the law and the commandments, in order to seek his God. And so he prospered.