None of the 77 books of the library called "Bible" should be simply "dismissed", but not all of them are inspired, useful or preserved on the same level.
While Genesis, Isaiah or Psalms are used very frequently, Song of Songs, Esther, Lamentations are never mentioned in the New Testament.
On the other hand, Enoch, Assumption of Moses are quoted or used and they are not in Jewish OT canon.
So we should not be very rigid regarding this, IMHO.
Of course, God cannot lie, such a question is silly.