D&C 121

As the Prophet continued to be inspired, the Lord reveals -

"God shall give unto you knowledge by his Holy Spirit, yea, by the unspeakable gift of the Holy Ghost, that has not been revealed since the world was until now..."  (Doctrine and Covenants | Section 121:26)

Explaining -

"Which our forefathers have awaited with anxious expectation to be revealed in the last times, which their minds were pointed to by the angels, as held in reserve for the fulness of their glory..."  (Doctrine and Covenants | Section 121:27)

Though many forefathers were allowed to write concerning such great knowledge, it seems they were not allowed to write with such clarity. The promises of this dispensation, the last dispensation  are such -

"...How long can rolling waters remain impure?  What power shall stay the heavens?  As well might man stretch forth his puny arm to stop the Missouri river in its decreed course, or to turn it up stream, as to hinder the Almighty from pouring down knowledge from heaven upon the heads of the Latter-day Saints."  (Doctrine and Covenants | Section 121:33)

Oh that the world would realize what knowledge has been given and much more may come.