Second Book of Paralipomenon (Author Compiled by Isaias and Esdras from records of Nathan, Gad, Addo, Ahias, Jehu and others.)
Chapter 36
21That the word of the Lord by the mouth of Jeremias might be fulfilled, and the land might keep her sabbaths: for all the days of the desolation she kept a sabbath, till the seventy years were expired.
Original from Project Gutenberg - Massive cleanup of OCR problems and editing done locally.