Most contemporary Old Testament scholars question whether Moses wrote the Pentateuch, but the Book of Mormon affirms Moses’ authorship. Questions arise as to how Jeremiah’s prophecies appeared on the brass plates and what the nature of the Book of the Law was. According to the brass plates Laban and Lehi were descendants of Manasseh. How then did they come to be living in Jerusalem? The brass plates, on which may be found lost scripture, may have been the official scripture of the ten tribes.