What does 2 Chronicles 34:21 mean?

He said, 'Go ask the Lord for me and for everyone left in Israel and Judah about what’s written in this book. God’s anger must be burning against us because our ancestors didn’t obey these words or do what’s written here.' 2 Chronicles 34:21 - Modern Text Bible

(Josiah wanted to know what God would say about their situation, realizing the seriousness of their disobedience and wanting to make things right.)