John Gill Commentary 2 Chronicles 34:29

"Then the king sent and gathered together all the elders of Judah and Jerusalem." — 2 Chronicles 34:29 (ASV)

Ver. 29-32. Then the king sent and gathered
From here, to the end of (2 Chronicles 34:32), the same account is given of the reading of the law to the people, and of the covenant the king and they made to serve the Lord, as in (2 Kings 23:1–3).