“It Was in Vain to Seek Their Destruction”
As long as the Nephite nation was worthy of the protection of the Lord, it was vain for any people or nation to seek its destruction. This is inherent in the concept of a covenant people being granted a promised land. The land is the symbol of the covenant they have made. As long as they honor their covenants, they retain the promise of protection. In the violation of their covenants they forfeit the right to divine protection and no longer have claim upon the land. See 2 Nephi 1:7.