The word of the Lord; either that commission from God that did authorize him to his prophetical work, as it may probably be taken, 1 Thessalonians 10:35, was actually given unto him, Jeremiah 1:10; or, command of God, as it is used, 1 Kings 12:24; or rather, the materials of which his prophecies were to consist, for the space of forty-one years successively, in Judea, viz. from the thirteenth year of Josiah to the eleventh year of Zedekiah, besides the time that he prophesied in Egypt. See Jer 43 Jer 44, as Isaiah 2:1. In the days of Josiah, i.e. during his reign and reformed state of religion. Amon; who corrupted again that religion by those idolatries that his father Manasseh had in the latter part of his reign so well reformed by rooting of them out, 2 Chronicles 33:21-23. In the thirteenth year; by which it appears that Jeremiah prophesied the last eighteen years of Josiah's reign; for he reigned thirty-one years, 2 Kings 22:1.
Related Commentaries of Jeremiah 1:2
Jeremiah 1:2
2 To whom the word of the LORD came in the days of Josiah the son of Amon king of Judah, in the thirteenth year of his reign.