Back to Josiah. He realized that Judah had been ignoring the will of the Lord for a long time; so much, that they deserved the troubles they had had. They consulted the prophetess Huldah who warned them that they had provoked the anger of the Lord, but that because Josiah had been penitent, disaster would not be immediate.
Josiah directed a public reading of the law then directed that the law be carried out. The temple was cleared of the inappropriate (and some really inappropriate things were going on in there.) He also directed that the alternative worship sites be destroyed.
They kept passover for the first time since the days of the judges.
God had warned them against having a king. Let us consider who is in charge of our lives, our decisions.