Doctrine and Covenants 18. Oliver and David have the same calling as the apostle Paul. Twelve disciples. Show them this revelation.
Part of the revelation is based on Oliver's June 14, 1829 letter to Hyrum copied into Letterbook-1, 5-6, and part on his Articles of the Church of Christ.
[Kenney, Scott; Saints Without Halos, 'Doctrine and Covenants,' http://web.archive.org/web/20120805163534/saintswithouthalos.com/s/_dc.phtml]