From the thirteenth year of Josiah the son of Amon king of Judah, even unto this day, that is the three and twentieth year, the word of the LORD hath come unto me, and I have spoken unto you, rising early and speaking; but ye have not hearkened.
From the thirteenth year of Josiah, in which Jeremiah began to prophesy (Jeremiah 1:1), to the end of Josiah's reign was 19 years (2 Kings 22:1); the three months (2 Kings 23:31) of Jehoahaz' reign, with the not quite complete 4 years of Jehoiakim (Jeremiah 25:1), added to the 19 years, make up 23 years (Jeremiah 25:3) in all.