D&C 67:5 teaches that God gave revelations to Joseph in his own language, which results in making known "his imperfections."
Section 67:5, Doctrine and Covenants, The Church of Jesus Christ of Latter Day Saints, October 31, 2023
5 Your eyes have been upon my servant Joseph Smith, Jun., and his language you have known, and his imperfections you have known; and you have sought in your hearts knowledge that you might express beyond his language; this also you know.