What does 2 Kings 22:13 mean?

He said, Go ask the Lord for me, for the people, and for all of Judah about what’s written in this book that’s just been found. The Lord must be furious with us, because our ancestors didn’t obey what’s written here. They didn’t do what this book says we should do. 2 Kings 22:13 - Modern Text Bible

(Josiah wants to know what God will do, since he realizes the nation has been ignoring God’s law for generations. He’s worried about the consequences.)