How did the king react to the reading of God's Law?

After King Josiah completed cleansing the land of Judah and while he was having Jehovah’s temple repaired, High Priest Hilkiah found “the book of Jehovah’s law by the hand of Moses,” doubtless the original copy. Entrusted by Hilkiah with this sensational find, Shaphan the secretary reported on the progress of the temple repair work and thereafter read the book to Josiah. On hearing God’s word, this faithful king ripped his garments apart and then commissioned a five-man delegation to inquire of Jehovah on his behalf and on behalf of the people. The delegation went to the prophetess Huldah, then dwelling in Jerusalem, and brought back a report to this effect: ‘Calamity will come as a consequence of disobedience to Jehovah’s Law. But because you, King Josiah, humbled yourself, you will be gathered to your graveyard in peace and will not see the calamity.
Subsequently Josiah assembled all the people of Judah and Jerusalem, including the older men, the priests, and the prophets, and read God’s Law to them. After this, they concluded a covenant of faithfulness before Jehovah. Then followed a second and evidently a more intensive campaign against idolatry. The foreign-god priests of Judah and Jerusalem were put out of business, and Levite priests who had become involved in improper worship at high places were deprived of the privilege of serving at Jehovah’s altar. The high places built centuries earlier during Solomon’s reign were made completely unfit for worship. In fulfillment of a prophecy uttered about 300 years previously by an unnamed man of God, Josiah pulled down the altar built by Israel’s King Jeroboam at Bethel. The high places were removed not only at Bethel but also in the other cities of Samaria, and the idolatrous priests were sacrificed on the altars where they had officiated.