Jeremiah 32:1

The word that came - This prophecy bears its own date: it was delivered in the tenth year of Zedekiah, which answered to the eighteenth of Nebuchadnezzar. It appears from 2 Kings 25:8 , that the eleventh year of Zedekiah was the nineteenth of Nebuchadnezzar; and consequently, that the eighteenth of that monarch must have been the tenth of the Jewish king.