Zeniff, the king of the Nephite people in the Land of Nephi, left little in the record, but here he devotes what he does write to two key concepts.
Overcoming Adversity through Trust in the Lord
Zeniff ascribes their victories and their preservation to their reliance on God. They did all that they could for themselves -- making weapons, setting guards, clothing themselves, and sending out spies. We can hone weapons against despair and other enemies by studying the scriptures and by following the guidance of our prophetic leaders. We need to guard ourselves and our homes from incursions by Satan and his ideas. That is especially important in our day as we defend our homes against the onslaught of media that seeks to portray every act as acceptable. We clothe ourselves with the righteousness by keeping the commandments. And we have "spies" watching the enemy ready to warn us to prepare. In General Conference there were numerous warnings that we should all heed. If we do these things, then we can do as the people of Zeniff did:
19 And now I, Zeniff, after having told all these things unto my people ..., I did stimulate them to go to battle with their might, putting their trust in the Lord
Weakness in Our Own Strength
The other point that Zeniff illustrated with the history of the Lamanites and how they came to reject the Lord and hate the Nephites. He describes them as follows:
11 Now, the Lamanites knew nothing concerning the Lord, nor the strength of the Lord, therefore they depended upon their own strength. Yet they were a strong people, as to the strength of men.
Men can have great strength "as to the strength of men," but having God on your side is always better. In His strength, we can do all things and face all challenges. I would paraphrase the Psalmist (Psalm 20:7): Some trust in men's creations, and some in the abundance of the moment: but I will remember the name of the LORD our God. If we trust in Him, then we can do as the Nephites did and go to battle with the Him on our side.