2 Chronicles 36:21

So the land enjoyed its Sabbath rest all the days of the desolation, until seventy years were completed, in fulfillment of the word of the LORD spoken through Jeremiah.

To fulfil the word of the LORD by the mouth of Jeremiah, until the land had enjoyed her sabbaths: for as long as she lay desolate she kept sabbath, to fulfil threescore and ten years.