Jeremiah 51:63-64

ERV(i) 63 And it shall be, when thou hast made an end of reading this book, that thou shalt bind a stone to it, and cast it into the midst of Euphrates: 64 and thou shalt say, Thus shall Babylon sink, and shall not rise again because of the evil that I will bring upon her: and they shall be weary. Thus far are the words of Jeremiah.