Joseph gives sermon where he draws from "Abraham's record"; teaches about the Godhead.
Joseph Smith, Discourse, circa May 1841, as Reported By Unknown Scribe–A, [1], The Joseph Smith Papers website, accessed July 8, 2021
By Joseph,— Everlasting covenant was made between three personages before the organizations of the earth, and relates to their dispensation of things to men on the earth, these personages according to Abraham’s record, are called God the first, the Creator; God the second, the Redeemer, and God the third, the witness or Testator.