Obeying the Words of the Book

Did you wonder, as I did, about the content of II Kings 22 - why is it matter for the keynote address at a music conference?
Wonder no more.

“Go, consult the Lord for me, for the people, and for all Judah, about the words of this book that has been found, for the rage of the Lord has been set furiously ablaze against us, because our ancestors did not obey the words of this book, nor do what is written for us.”