There he meet Alexander Campbell and began preaching for Campbellite movement. By 1836 Thomas had concluded that adults who had been previously baptized by a different denomination had to be re-immersed in order to join the Campbellites.
Thomas met Alexander Campbell and started spreading the beliefs of the Campbellite movement. By 1836, Thomas believed that adults previously baptized by another denomination needed to be re-immersed for membership in the Campbellites.