well obviously YOU believe he translated it. He did read the bible so he could have gotten ideas from there
"I can take my Bible, and go into the woods, and learn more in two hours, than you can learn at meetings in two years, if you should go all the time." [Lucy Mack Smith, Biographical Sketches of Joseph Smith, the Prophet, and His Progenitors for Many Generations (Liverpool: S. W. Richards, 1853), p. 90]