That all of the sons received many wounds (v. 25) illustrates that they were all involved in the battle and did not resist combat. So must we be involved in the battle of evil. As Edmund Burke said: “The only thing necessary for evil to triumph is for good men to do nothing.”
“The joy of our whole army” over none of the sons being killed shows the great love they had for these young soldiers. The army also recognized the power of God as the son’s protector, which surely increased their faith.
The firm minds of these young sons of Helaman and the putting of their trust in God continually is another great lesson for the young Latter-day Saint military people. Whether it be in a literal battle for their country, or in the battle of evil, they must follow this example if they want to survive the conflict. A firm mind, (v. 27) is one that knows and is determined to follow the laws of God, or at least the ones he does know. As the Prophet Joseph said: “… We cannot keep all the commandments without first knowing them, and we cannot expect to know all, or more than we now know unless we comply with or keep those we have already received” (TPJS, 256).
To put our trust in God continually (v. 27) is to know the source and recognize a revelation. The Prophet Joseph Smith further said:
That which is wrong under one circumstance, may be, and often is, right under another… . God said, ‘thou shalt not kill;’ at another time He said “Thou shalt utterly destroy.” This is the principle on which the government of heaven is conducted—by revelation adapted to the circumstances in which the children of the kingdom are placed. Whatever God requires is right, no matter what it is, although we may not see the reason thereof till long after the events transpire. If we seek first the kingdom of God, all good things will be added. [TPJS, 256]