2 Chronicles 36:22-23
22 In the first year of Cyrus king of Persia, in order to fulfill the word of the Lord spoken by Jeremiah, the Lord moved the heart of Cyrus king of Persia to make a proclamation throughout his realm and also to put it in writing:
23 “This is what Cyrus king of Persia says: “‘The Lord, the God of heaven, has given me all the kingdoms of the earth and he has appointed me to build a temple for him at Jerusalem in Judah. Any of his people among you may go up, and may the Lord their God be with them.’”
From Ezra 1:1-4:
In the first year of Cyrus king of Persia, in order to fulfill the word of the Lord spoken by Jeremiah, the Lord moved the heart of Cyrus king of Persia to make a proclamation throughout his realm and also to put it in writing:
2 “This is what Cyrus king of Persia says:
“‘The Lord, the God of heaven, has given me all the kingdoms of the earth and he has appointed me to build a temple for him at Jerusalem in Judah. 3 Any of his people among you may go up to Jerusalem in Judah and build the temple of the Lord, the God of Israel, the God who is in Jerusalem, and may their God be with them. 4 And in any locality where survivors may now be living, the people are to provide them with silver and gold, with goods and livestock, and with freewill offerings for the temple of God in Jerusalem.’”
As you can see, the end of 2 Chronicles is almost word-for-word identical to the beginning of Ezra. Why is that? What's the purpose of the repetition (rather than just "picking up wherethe other book left off")? Does this suggest that they were written (or completed) by the same author(s) (or merely that the author of Ezra had access to 2 Chronicles)?