Take Heed to Yourselves, pp. 190-191; “Every man that teaches holds a great responsibility, and he that teaches error and leads men from the path of truth is committing one of the greatest crimes that it is possible for man to commit. If he, through his teachings, is presenting false doctrine, and leading men astray from that which is eternal truth, away from the kingdom of God, he is taking upon himself a grave responsibility for which he will have to answer at the judgment seat of God. …
No matter what you teach, if it is not of God, it is darkness. And eventually, no matter how well it may be received, it must come to an end.” – Joseph Fielding Smith