Joseph's revelation re: marriage to Shaker community.
Book of Commandments (1833) (Independence, MO: W.W. Phelps and Co., 1833), 117, The Joseph Smith Papers website, accessed August 11, 2021
16 And again, I say unto you, that whoso forbiddeth to marry, is not ordained of God, for marriage is ordained of God unto man:
17 Wherefore it is lawful that he should have one wife, and they twain shall be one flesh, and all this that the earth might answer the end of its creation; and that it might be filled with the measure of man, according to his creation before the world was made: