Moroni’s Promise – Ensign Apr. 1994 
Elder Gene R. Cook of the Seventy explains:
The Book of Mormon offers a remarkable promise to those seeking knowledge of the truth. Over the years, I have heard members and missionaries offer a variety of explanations about its meaning. A close examination of the three key verses—Moroni 10:3–5 [Moro. 10:3–5]—will show us that their meaning is far more profound than many of us might have thought.
Verse 4 [Moro. 10:4] identifies yet another important principle: if we want an answer from God, we will move ourselves out of a neutral position and let our desire to believe that God can help us begin to work in us.
One way to understand verse 4 [Moro. 10:4] is to note that the scripture does not say we are to ask whether these things are true or not, but that we are to ask “if these things are not true.” What is the difference?
The Lord does not ask us to prove that the teachings we have read are true, or that they are not true. That is the kind of objective approach one might take in the academic, scientific world. However, that is not the best way we learn truth from the Lord.
The Lord offers us the opportunity to let him confirm truth already in our hearts. But in order to confirm religious truth, one must at least have the idea, or the thought, or the belief (however small) that he has found something true, and then pray to receive the Lord’s confirmation.
Verse 4 [Moro. 10:4], then, is the Lord’s invitation, through Moroni, to thus confirm truth. To ask “if these things are not true” implies a degree of acceptance that comes as a result of our pondering the teachings of the Book of Mormon that we have received. Notice again the importance of that very first step—remembering the mercy of God to us since the Creation—and then the next step, which is to similarly ponder and receive the teachings of the Book of Mormon. Surely such pondering of these teachings will bring to mind their truth, their power, their goodness. Thus, it is now tantamount to praying, “Father, I believe that I have received truth. Please tell me if this is not so.” This kind of humble petition is motivated by our faith in Christ, by our faith that he will let us know whether our feelings are correct concerning the Book of Mormon or whether we have been deceived. Thus, our prayer, in essence, is a request for a confirmation of our own conclusions from our pondering. The Lord may not respond exactly how and when we expect, but still our obedience to these conditions qualifies us to receive an answer; this is the scope of the process described in these verses.
The Fairest Gem 