The first President of the Quorum of the Twelve Apostles after the restoration of the Church in 1830. He held the keys to the kingdom as pertained to the Twelve (D&C 112: 16) and, in 1838, was commanded by revelation to publish the Lord’s word (D&C 118: 2). Section 31 of the Doctrine and Covenants is directed to him. Marsh was excommunicated from the Church in 1839 but was rebaptized in July 1857.