Daniel wrote: Some years later, Darius the Mede, who was the son of Xerxes, had become king of Babylonia. And during his first year as king, I found out from studying the writings of the prophets that the LORD had said to Jeremiah, “Jerusalem will lie in ruins for seventy years.”
My servant Jeremiah has told you what I said I will do to Babylonia and to the other nations, and he wrote it all down in this book. I will do everything I threatened.