http://en.wikipedia.org/wiki/Moral_absolutism

Moral absolutism is the meta-ethical view that certain actions are absolutely right or wrong, devoid of the context of the act. Thus lying, for instance, might be considered to be always immoral, even if done to promote some other good (e.g., saving a life). Moral absolutism stands in contrast to categories of ethical theories such as consequentialism and situational ethics, which holds that the morality of an act depends on the consequences or the context of the act.