2 Chronicles (Author Compiled by Isaiah and Ezra from records of Nathan, Gad, Iddo, Ahijah, Jehu and others.)
36:21to fulfil the word of Jehovah in the mouth of Jeremiah, till the land hath enjoyed its sabbaths; all the days of the desolation it kept sabbath -- to the fulness of seventy years.
Original from The Bible Foundation - bf.org. They claim public domain status for their original text.