The book of Jeremiah is Prophetic Oracle and Narrative History, although not completely in chronological order. The prophet Jeremiah wrote it sometime during his ministry about 626-586 B.C. Key personalities are the many kings Judah, Baruch, Ebdemelech, King Nebuchadnezzar, and the Rechabites.Its purpose was to warn of the destruction that they were about to face and to urge Judah to return and submit to God. Jeremiah was a priest who God calls to be His prophet. Jeremiah identifies their sins and treachery, as he wants them to realize the serious condition of their sinful ways. He then gives prophecies of the coming king and the New Covenant that would be made.