2 Chronicles 36:19-21

19And they burned the house of 1God, and broke down the wall of Jerusalem, and burned all the palaces thereof with fire, and all the precious vessels thereof were given up to destruction.

20And them that had escaped from the sword he carried away to Babylon; and they became servants to him and his sons, until the reign of the kingdom of Persia;

21to fulfil the word of Jehovah by the mouth of Jeremiah, until the land had enjoyed its sabbaths. All the days of its desolation it kept sabbath, to fulfil seventy years.