In only a few places do we read in the Book of Mormon about Priesthood authority being received.  Critics ask, if Lehi and Nephi had Priesthood authority, from where did it come, since the Book of Mormon is silent on the subject?  The answer is Lehi brought Priesthood authority from Jerusalem and is was properly and validly transmitted from generation to generation, even though we have no specific record of it, any more than there is a record in the New Testament of precisely when, where and how the original Apostles of Jesus received their Priesthood authority.