J. D. Stead discusses Temple Endowment Ceremony; distinguishes "Jesus" from "Jehovah."
J. D. Stead, Doctrines and Dogmas of Utah Mormonism Exposed (Board of Publication of the Reorganized Church of Jesus Christ of Latter Day Saints, 1911), 110
"HE FALLS ASLEEP.
"Elohim and Jehovah then pass their hands over Michael's body, breathe on him, and he falls asleep.
"Elohim (to the audience)—This man who is being operated on is Michael. When he awakes he will have forgotten everything and become as a little child and will be known as Adam.
"Where upon Adam awakens.
"Elohim—It is not good for man to be alone.
"Jehovah—It is not good, for we are not alone.
"Elohim—We will cause a deep sleep to fall upon Adam and make for him a woman to be with him.
According to Jacob Vidrine, this is evidence that "Jehovah" in the Temple ceremony was not originally understood to be the premortal Jesus:
The reality that Creation Jehovah in the Endowment was not originally understood to be Jesus was evident as late as the early 1900s Endowment ceremony, wherein Jehovah indicates that both he and Elohim were exalted married men. (Jacob Vidrine, "The Adam-God Doctrine in the endowment," One Eternal Found: A Magazine Dedicated to Mormon History and Theology, no. 23 [April 15, 2021], 28)