'Seventy Years' in the Bible

And it was in that day, and Tyre was forgotten seventy years, according to the days of one king: from the end of seventy years it shall be to Tyre as the song of a harlot.

And it was from the end of seventy years, Jehovah will review Tyre, and she turned back to her gift, and she committed fornication with all the kingdoms of the land upon the face of the earth.