The book of 1st Chronicles is a book of Narrative History, and Genealogies. The author appears to be the prophet Ezra who wrote it circa 430 B.C. It covers the events from 1000 to 960 B.C. Key personalities are King David and Solomon.
This book parallels some of 2nd Samuel, and therefore describes similar events. It was written after the exile, its purpose was to encourage the remnant that had come out of the Babylonian captivity. It begins with the ancestry of the nations past, but it is not chronological.
In chapter 1-9, the book begins with Adam and runs through the genealogies of Israel. It continues through all the 12 tribes of Israel, then King David, and then the Priestly line. The descendants teach the history of the nation, extending from God’s creation all the way through the exile in Babylon. “Now Jabez called on the God of Israel, saying, “Oh that You would bless me indeed and enlarge my border, and that Your hand might be with me, and that You would keep me from harm that it may not pain me!” And God granted him what he requested” (4:10).
From chapters 10-29, there is a review from King Saul’s death with the Philistines, through King David’s reign, including the preparation for the building of the new temple, which Solomon would build, “David also told his son Solomon, ‘Be strong and courageous, and do the work. Don't be afraid or terrified. The LORD God, my God, will be with you. He will not abandon you before all the work on the LORD's temple is finished” (28:20). The book ends with Solomon’s reigning as king of Israel.
–biblehub.com