Even though Moroni had recaptured Mulek, there were still Lamanites entrenched in former Nephite lands on the eastern border of the Nephite lands. The situation was worsening on the western front. The people of Ammon could not help but understand the situation and the need of the Nephites to recruit all available men to be in the army. They clearly understood that the Nephites had taken them in and protected them, and therefore felt that they owed the Nephite nation what support they could give. They had already declared that they would support them with food, but it appeared that more was going to be needed.
They were “about to take their weapons of war.” However, Helaman and his brethren learned of their intentions and worked hard to dissuade them. The reason was that they had taken an oath. While the Nephites could use their military expertise, Helaman was afraid “lest by so doing they should lose their souls.” The covenant was taken that seriously. Helaman felt it so strongly that he would not risk the souls of those who had once been Lamanites and therefore enemies, even given the great military need. Such was the power of covenants.