2 Chronicles 36:21-22

21to fulfill the word of the Lord by the mouth of Jeremiah, until the land had restored its Sabbaths; for as long as the land lay desolate it kept Sabbath until seventy years were complete.

22Now in the first year of Cyrus king of Persia—in order to fulfill the word of the Lord by the mouth of Jeremiah—the Lord stirred up the spirit of Cyrus king of Persia, so that he sent a proclamation throughout his kingdom, and also put it in writing, saying,