Joseph gives a revelation calling Oliver Cowdery to preach to the Lamanites.
"Revelation, September 1830–B [D&C 28]," 40-41, The Joseph Smith Papers, accessed May 11, 2022
A Revelation to Oliver his Call to the Lamanitse &c given at Fayette Seneca County State of New York
. . . .Behold I say unto you that thou shalt go unto the Lamanites & Preach my Gospel unto them & cause my Church to be established among them & thou shalt have Revelations but write them not by the way of Commandment