Jeremiah 25:11-12

And this whole land shall be a desolation and an astonishment, and these nations shall serve the king of Babylon seventy years. ‘Then it will come to pass, when seventy years are completed, that I will punish the king of Babylon and that nation, the land of the Chaldeans, for their iniquity,’ says the LORD; ‘and I will make it a perpetual desolation.