19 But behold, this was not the desire of Moroni; he did not delight in murder or bloodshed, but he delighted in the saving of his people from destruction; and for this cause he might not bring upon him injustice, he would not fall upon the Lamanites and destroy them in their drunkenness.
Moroni was the commander of the Nephite army during a time of war. You could say that a central part of his job was killing the enemy: the attacking Lamanite soldiers. But Moroni didn’t think of it that way. In his mind, his mission was “to defend his people, his rights, and his country, and his religion, even to the loss of his blood” (Alma 48:13). Killing the enemy may have been necessary to achieve that goal, but he didn’t like it, and he avoided it whenever he could fulfill his duty in other ways.
In this chapter, Mormon gives us an example of how Moroni’s perspective translates into real-world decisions. The enemy has been tricked into incapacitating themselves. They are totally vulnerable. Moroni could easily have his army kill them all. But he doesn’t. He accomplishes his objectives–retaking a key city and freeing the prisoners–without taking the lives of the Lamanites.
The way you define your mission will affect how you fulfill it, including how you treat other people along the way.
I’m not a soldier. But in the course of fulfilling my responsibilities, I do disagree with others, I do make decisions which affect other people’s lives, and I do tell people things which they don’t want to hear. As I fulfill my duties today, I will seek to frame my mission correctly, to focus on accomplishing the right goals, and to think about the impact my decisions will have on all of the people involved.