[A]s a commencement the Lord appeared unto Joseph Smith, both the Father and the Son, the Father pointing to the Son said, "this is my beloved Son in whom I am well pleased, hear ye him" Here then, was a communication from the heavens made known unto man on the earth, and he at that time came into possession of a fact that no man knew in the world but he, and that is that God lived, for he had seen him, and that his Son Jesus Christ lived, for he also had seen him.