Overview
Divine Command Theory (DCT) reduces the question “What ought I to do?” to the question “What has God commanded?” Moral properties such as goodness, obligation, or prohibition are, on this view, extrinsic: they are bestowed upon actions by an act of divine fiat. Thus, murder is wrong because God has prohibited it; charity is right because God has enjoined it. The theory is not merely that religious believers should obey divine commands (a practical maxim embraced by most faiths), but the stronger philosophical thesis that these commands constitute the very ground of moral value. Without God’s decrees, nothing would be right or wrong in an objective sense.Because DCT links moral ontology to a personal, commanding deity, it is sometimes called “theological voluntarism.” It stands in contrast to natural-law theories, which hold that moral truths are accessible through human reason and that God’s commands merely reiterate or reinforce them. DCT also differs from virtue ethics or consequentialism, which locate moral value in character traits or outcomes rather than in obedience to a transcendent will. Critics charge that DCT renders morality arbitrary—God could, in principle, command cruelty and thereby make it right—while defenders reply that divine commands flow from God’s necessarily perfect nature, ensuring their benevolence.
Background
The roots of DCT reach back to the ancient Near East, where law codes such as the Code of Hammurabi (c. 1754 BCE) were presented as gifts from the gods, fusing legality with sacred obligation. In the Hebrew Bible, the refrain “Thus says the LORD” precedes moral and ritual directives, implying that to disobey is both criminal and sacrilegious. Plato’s Euthyphro (c. 399 BCE) crystallized the philosophical puzzle: does God love the pious because it is pious, or is it pious because God loves it? Socrates’ dilemma—whether holiness is holy independent of the gods, or whether it becomes holy by divine approval—remains the classic formulation against DCT.Medieval Christianity and Islam explicitly embraced divine voluntarism. Augustine (354–430) argued that moral truths are “immutable and eternal” only because they reside in the divine intellect; without God, they would vanish. Al-Ghazali (1058–1111) declared that good is nothing but what God has decided; reason cannot judge the divine will. Duns Scotus (1265–1308) and William of Ockham (c. 1287–1347) intensified the voluntarist stance, with Ockham famously allowing that God could command hatred of Him, in which case such hatred would become a duty. The Protestant Reformation redirected focus to scripture alone (sola scriptura), reinforcing the primacy of revealed commands over natural reason. In the modern era, voluntarism re-emerged in the works of Karl Barth (1886–1968), who insisted that God’s “No” and “Yes” constitute the only valid moral measure, and in the analytic revival by figures such as Robert Merrihew Adams (b. 1937), who reformulated DCT within a Platonic framework of a “Divine Good” that is itself the standard of value.
