Constant review of basic principles constantly brings increased spiritual insight. “Those who preach by the power of the Holy Ghost,” testified Elder Bruce R. McConkie, “use the scriptures as their basic source of knowledge and doctrine. They begin with what the Lord has before revealed to other inspired men. But it is the practice of the Lord to give added knowledge to those upon whose hearts the true meaning and intents of the scriptures have been impressed.
Many great doctrinal revelations come to those who preach from the scriptures. When they are in tune with the Infinite, the Lord lets them know, first, the full and complete meaning of the scriptures they are expounding, and then he oft-times expands their views so that new truths flood in upon them, and they learn added things that those who do not follow such a course can never know.” (Promised Messiah, pp. 515-16.) We reduce the realm of the unknown not by wandering in it but rather by feasting on and expanding our knowledge of that which God has already revealed.