Times and Seasons 1 (October 1840): 186
The president then spoke of the necessity of building a "House of the Lord" in this place. 
—3 October 1840 (2)
 See History of the Church, 4:205. Not in Teachings. The History of the Church entry is based on the Times and Seasons account given in the text. The following remarks were made at the October 1840 General Conference of the Church.
 As in each of the Saints' gathering places before Nauvoo—in Kirtland, Independence, and Far West—temple sites were selected and dedicated. Therefore, it is not surprising that three and a half months before D&C 124 was received authorizing the building of and approving of site selection for a temple, Joseph Smith began to speak of the necessity of such a structure in Nauvoo.