The dilemma is ancient — it appears in Plato’s dialogue Euthyphro, formulated as a question about piety — but its force has not diminished in two and a half millennia. Applied to theism: is something morally good because God commands it? Or does God command it because it is morally good? Both options appear to damage theism, and the argument is taken seriously in contemporary philosophy of religion.
If the first horn: morality is arbitrary. God could command cruelty, and cruelty would thereby become good. The command-theory of morality gives God no moral character — just infinite power to define. If the second horn: goodness is a standard independent of God, to which God conforms. God is then constrained by something above Himself, and we could in principle know what is good without reference to God at all.
The third option: divine nature theory
Classical theism — articulated by Anselm, Aquinas, and within the Islamic tradition by scholars of the Ash’arite school — responds by rejecting the dichotomy. The dilemma assumes that God’s commands and the standard of goodness are two distinct things. On the divine nature theory, they are not. God’s nature just is the ultimate standard of goodness. He does not conform to a standard above Himself, nor does His command create goodness arbitrarily. His commands express His nature, and His nature is the eternal reality of what goodness means.
On this view, the question “is cruelty good because God commands it?” is incoherent — not because of a limitation on God’s power, but because a perfectly good nature cannot command cruelty. Asking whether God could command cruelty is like asking whether a perfectly rational being could believe a contradiction. The nature rules out the possibility before it arises.
The Islamic articulation
Within Islamic theology, the relevant debate is between the Ash’arites and the Mu’tazilites. The Mu’tazilites held that good and evil are rationally knowable independent of divine command — which places them closer to the second horn of the dilemma. The Ash’arites held that divine command is constitutive of moral obligation — which risks the first horn. But the most sophisticated Ash’arite position is not simple divine command theory. It holds that God, being perfectly good, necessarily commands what accords with His nature. The arbitrariness worry does not arise because divine nature is not arbitrary.
The verse illustrates the point. God commands justice not because His command makes justice good, but because justice is an expression of His nature. His command is not an arbitrary imposition. It is a disclosure of the moral structure embedded in the nature of the Creator.
The problem for secular ethics
The Euthyphro dilemma is sometimes deployed as though it defeats theistic ethics while leaving secular ethics untouched. But the question it raises — what is the ground of moral facts? — is equally pressing for any ethical system. Secular ethics must explain where moral obligations come from, why they are binding rather than merely conventional, and what makes certain things genuinely wrong rather than merely dispreferred or socially disapproved.
Moral realism without God faces its own grounding problem: if moral facts are real, mind-independent, and binding, what is their ontological status? They are not physical objects. They are not mathematical abstractions in any obvious sense. The secular philosopher who uses the Euthyphro dilemma against theism must answer a parallel question: in virtue of what are moral facts facts at all?
The divine nature theory has the advantage of providing a natural account of moral realism
The dilemma has force only as long as its two terms are held apart — as though “God” and “goodness” are two separate things whose relationship must be defined. The divine nature theory denies this starting assumption. If God’s nature just is the eternal standard of goodness, the question “which came first, the command or the moral fact?” is as confused as asking which came first, the triangle or its three-sidedness. They are not two things in a relationship. They are the same thing under two descriptions. Recognising this does not mean that every question about divine ethics is answered — it means that this particular dilemma fails to get started. To put it plainly: the Euthyphro dilemma is a genuine problem for a theology that treats God as a powerful lawgiver operating within a pre-existing moral order, or as a being whose commands arbitrarily create goodness. Classical theism — including the dominant tradition in Islamic theology — holds neither position. The dilemma does not touch it.
: moral facts are real because they are grounded in the nature of the Being whose existence is itself necessary. They are not invented, not merely conventional, not merely the preferences of the most powerful. They are expressions of the character of the ground of all being — which is why they have the force of genuine obligation rather than mere suggestion.