The book of 2nd Chronicles is a Narrative History. The author appears to be the prophet Ezra who wrote it circa 430 B.C. It covers the events from the beginning from King Solomon’s reign in 970 B.C. up to the beginning of the Babylonian captivity in 586 B.C. The key personalities are King Solomon, the queen of Sheba, Rehoboam, Asa, Jehoshaphat, Jehoram, Joash, Uzziah, Ahaz, Hezekiah, Manasseh, and Josiah.
It was written to emphasize the blessings of the righteous kings and to expose the sins of the wicked kings. It parallels some parts of 1st and 2nd Kings. Like 1st Chronicles, it is written from the viewpoint of a priest who spoke from spiritual perspectives, including revivals. It too, was written after the exile and focuses on correct worship to YHWH.
Chapters 1-9 teach the details of the reign of King Solomon. It covers the wisdom of Solomon, the building and construction of the temple in Jerusalem, which was dedicated to the Lord God. “and My people who are called by My name humble themselves and pray and seek My face and turn from their wicked ways, then I will hear from heaven, will forgive their sin and will heal their land” (7:14).
Chapters 10-36 describe the events in the split of the nation of Israel. The nation split into two kingdoms: North and South. The Northern Kingdom revolted against King Rehoboam, and took a new king; his name was Jeroboam. 2nd Chronicles focuses mainly from here, on the events of the Southern Kingdom. These include 20 kings and are a dynasty from King David. These chapters describe the events all the way up through the Northern Kingdom and its captivity to Babylon. Nevertheless, the mercy of the Lord is seen in the last two verses of this book. Cyprus, King of Persia declares that the remnant of Israel may return to Jerusalem, “in order to fulfill the word of the LORD” (36:22).
–biblehub.com