Utilitarianism and Deontological Ethics are the two major theories that attempt to specify and justify moral rules and principles.
Basically a utilitarianism approach to morality implies that no moral act or rule is intrinsically right or wrong. Rather, the rightness or wrongness of an act or rule is solely a matter of the overall non-moral good produced in the consequences of doing that act or following that rule. Morality is a matter of the non-moral good produced that results from moral actions and rules, and moral duty is instrumental, not intrinsic.
On the other hand, deontological ethics is in keeping with Scripture, natural moral law, and intuitions or instincts from common sense. It is one of those kinds of normative concepts or theories regarding which choices are morally required, forbidden, or permitted. Therefore, deontology falls within the domain of moral theories that guide our choices of what we ought to do, in contrast to that—fundamentally, at least—guide what kind of person (in terms of character traits) we are and should be.
Of interest, a growing number of researchers now believe that babies are in fact born with an innate sense of morality, and while parents and society can help develop a belief system in babies, they don't create one. Find out more at CNN.