2 Chronicles 20:31-34

We arrive to the close of Jehoshaphat's reign and life together. The length of it was not equal to many of the kings of Judah, though such honourable testimony is given of him. Perhaps the records concerning him, said here to be in the writings of the book of Jehu, might have been extant for a long space after his death; but not being of sacred authority, they were not made a part of the Canon of Scripture.