Morality is grounded in human welfare, not divine command

Secular humanism affirms that morality is grounded in human welfare rather than in divine command, that right and wrong are determined by their consequences for the flourishing, dignity, and suffering of sentient beings, discoverable through reason, empathy, and experience, and not by the decrees of a deity or the authority of scripture. On this view ethics is a human enterprise, answerable to the real needs and interests of people, and moral progress consists in extending care and justice more widely and reducing avoidable harm.

The clearest philosophical articulation of welfare-grounded ethics is utilitarianism, developed by Jeremy Bentham in An Introduction to the Principles of Morals and Legislation (1789) and refined by John Stuart Mill in Utilitarianism (1863), which holds that an action's rightness is determined by how far it increases happiness and reduces suffering for all affected, a criterion requiring no reference to divine command at all. Not all humanists are strict utilitarians, some favour a Kantian emphasis on rational respect for persons, others a virtue-ethical or pluralist approach, but the underlying humanist conviction that morality is answerable to human, and for many humanists also animal, welfare and flourishing rather than to revealed law unites these otherwise differing ethical frameworks under a common naturalistic premise.

This affirmation distinguishes humanist ethics from the divine-command moralities of the theistic religions, which root obligation in the will of God. Humanists argue that morality can stand on human foundations and even that grounding it in welfare makes it more responsive to actual human good, echoing the ancient question of whether the good is good because a god commands it. The belief follows from the humanist commitment to reason and to this life, and it is presented here as the ethical stance humanists hold. The question, whether an act is good because God commands it, or God commands it because it is already good, was first posed with lasting force in Plato's dialogue Euthyphro, written in the fourth century BCE, and it remains a live technical debate in philosophy of religion rather than one settled by antiquity.

Contemporary theistic philosophers have developed more sophisticated versions of divine command theory to answer it, notably Robert Adams in Finite and Infinite Goods (1999), which grounds moral obligation in the commands of a God whose own nature is essentially loving, arguing this escapes the dilemma's force; humanist ethicists respond that such moves ultimately concede the humanist point, that some standard of goodness must be intelligible independently of the mere fact of a command.