Morals - Objective and Subjective

[Angrboda]

Theist quite frequently use the argument of objective morals to justify the existence of a certain deity.

Let's distinguish between objective morals and absolute morals.
Objective morals are those which are agreed on and consistent for a set of individual observers. Absolute morals would be those which are external to and consistent for any and all individual observers.

I think you are mistaken.

Moral absolutism is an ethical view that particular actions are absolutely right or wrong. Thus stealing, for instance, might be considered to be always immoral, even if done to promote some other good (e.g., stealing food to feed a starving family), and even if it does in the end promote such a good. Moral absolutism stands in contrast to other categories of normative ethical theories such as consequentialism, which holds that the morality (in the wide sense) of an act depends on the consequences or the context of the act.

Moral absolutism is not the same as moral universalism (also called moral objectivism). Universalism holds merely that what is right or wrong is independent of custom or opinion (as opposed to moral relativism), but not necessarily that what is right or wrong is independent of context or consequences (as in absolutism). Moral universalism is compatible with moral absolutism, but also positions such as consequentialism. Louis Pojman gives the following definitions to distinguish the two positions of moral absolutism and universalism:

• Moral absolutism: There is at least one principle that ought never to be violated.
  
• Moral objectivism: There is a fact of the matter as to whether any given action is morally permissible or impermissible: a fact of the matter that does not depend solely on social custom or individual acceptance.

Ethical theories which place strong emphasis on rights and duty, such as the deontological ethics of Immanuel Kant, are often forms of moral absolutism, as are many religious moral codes.

(Moral Absolutism)

I believe that "moral objectivism" is a synonym for "moral realism."

Moral realism is a non-nihilist form of cognitivism. In summary, it claims:

1. Ethical sentences express propositions.
   
2. Some such propositions are true.
   
3. Those propositions are made true by objective features of the world, independent of subjective opinion.

(Moral Realism)