Jeremiah 51:59-64 MSG

59 Jeremiah the prophet gave a job to Seraiah son of Neriah, son of Mahseiah, when Seraiah went with Zedekiah king of Judah to Babylon. It was in the fourth year of Zedekiah's reign. Seraiah was in charge of travel arrangements.
60 Jeremiah had written down in a little booklet all the bad things that would come down on Babylon.
61 He told Seraiah, "When you get to Babylon, read this out in public.
62 Read, 'You, O God, said that you would destroy this place so that nothing could live here, neither human nor animal - a wasteland to top all wastelands, an eternal nothing.'
63 "When you've finished reading the page, tie a stone to it, throw it into the River Euphrates, and watch it sink.
64 Then say, 'That's how Babylon will sink to the bottom and stay there after the disaster I'm going to bring upon her.'"