DC 13:Intro SECTION 13
Revelation given through Joseph Smith, Jr., the prophet, to John Whitmer, June 1829, at the home of Peter Whitmer, Sr., John's father, at Fayette, Seneca County, New York. John Whitmer became one of the eight witnesses whose testimony is published with all editions of the Book of Mormon.
DC 85:46b It is to be commenced with prayer; and after partaking of bread and wine, he is to gird himself, according to the pattern given in the thirteenth chapter of John's testimony concerning me. Amen.