Divrey Hayamim Bais 36:19-21

Orthodox Jewish Bible

¹⁹ And they burned the Beis HaElohim, and broke down the Chomat Yerushalayim, and burned all the palaces thereof with eish, and destroyed all its precious vessels.

²⁰ And them that had escaped from the cherev carried he off to Babylon where they were avadim to him and his banim until the kingdom of Paras (Persia) began to reign;

²¹ To fulfil the Devar Hashem by the mouth of Yirmeyahu, until HaAretz had made up for its Shabbatot, for as long as she lay desolate she was shomer Shabbos, to fulfil Shivim Shanah (seventy years, see Jeremiah 25:11).