"He also serves who stands and waits and watches carefully" and "Careful planning always defeats rushed actions in the end" are popular sayings of Helm's faithful. Novices of Helm are charged to be vigilant and to he fair and diligent in the conduct of their orders. They must protect the weak, the unpopular, the injured, and the young and not sacrifice them for others. They must anticipate attacks and be ready, know their foes, and care carefully for their weapons so that their weapons" can perform their duties properly when called upon. "Never betray your trust" is the guiding phrase for faithful of Helm.
This philosophy extends to thinking about how best to guard and protect, both in terms of weapons and the deployment of guardians, and to anticipating what attacks may come and having a practiced plan ready to deal with such threats. The faithful and the priests of Helm train and exercise so as to always be able to carry out their duties as best they can, they always obey orders, provided those orders follow the dictates of Helm.
The thought of commanding undead rather than turning them or destroying them is abhorrent to Helm, and so his clergy are not allowed to do so and would never dream of trying. This difference in philosophy is a major factor in the rivalry between his church and that of Torm.