“Now hear it, O inhabitants of the earth, Jew and Gentile, Saint and sinner! When our father Adam came into the garden of Eden, he came into it with a celestial body, and brought Eve, one of his wives, with him. He helped to make and organize this world. He is MICHAEL, the Archangel, the ANCIENT OF DAYS! about whom holy men have written and spoken-He is our FATHER and our GOD, and the only God with whom WE have to do. Every man upon the earth, professing Christians or non-professing, must hear it, and will know it sooner or later. They came here, organized the raw material, and arranged in their order the herbs of the field, the trees, the apple, the peach, the plum, the pear, and every other fruit that is desirable and good for man; the seed was brought from another sphere, and planted in this earth. The thistle, the thorn, the brier, and the obnoxious weed did not appear until after the earth was cursed. When Adam and Eve had eaten of the forbidden fruit, their bodies became mortal from its effects, and therefore their offspring were mortal…It is true that the earth was organized by three distinct characters, namely, Eloheim, Yahovah, and Michael, these three forming a quorum, as in all heavenly bodies, and in organizing element, perfectly represented in the Deity, as Father, Son, and Holy Ghost.”

Journal of Discourses 1:50-51 (April 9, 1852)
This concept is commonly referred to as the "Adam–God theory."
1850s