Orson Pratt,
Journal of Discourses — Volume 16…
“ I might be ever so sincere, and I might receive the ordinance from the hands of a man who, I really supposed, had the authority and who was a good, moral, upright man, and yet that baptism would not be acceptable in the sight of God, unless he did truly have divine authority. How am I to know whether a man has divine authority or not? It is one of the easiest things in the world to know. I will tell you how you may know a man who has divine authority from one who has not. ”
