Alma 48:7

"Now it came to pass that while Amalickiah had thus been obtaining power by fraud and deceit, Moroni, on the other hand, had been preparing the minds of the people to be faithful unto the Lord their God."

Moroni, captain of the Nephite armies, found primary importance in making sure his people had faith in the Lord. While preparing for battle there are many other things he could have put at greater importance, but Moroni knew that the greatest aid to them in battle was their faith in God. The Lamanites were armed with hatred and greed while the Nephites were armed with love and humility.