Category: ethics
Type: argument
Associated thinker(s): Plato (Socrates in the dialogue Euthyphro)
Original publication or approximate period: Plato, Euthyphro (conventionally dated to the fourth century BCE; the precise composition date is uncertain)
Difficulty: Beginner
Themes: divine command, moral objectivity, grounds of obligation
Related experiments: The Ring of Gyges; The Veil of Ignorance and Original Position
In Plato’s dialogue, Socrates meets Euthyphro, who is confident he knows what piety is. After Euthyphro defines the pious as what all the gods love, Socrates asks whether it is loved by the gods because it is pious, or pious because the gods love it (Stephanus 9e–11b, especially 10a).
A later theological version replaces “pious” with “morally good” and “the gods” with “God”: is something good because God commands it, or does God command it because it is good? This is an interpretive extension, not the dialogue’s wording.
Does moral authority depend on divine will, or can a moral standard hold independently of any will, including God’s?
One objection to a command-only account is that it seems to make any act, however cruel, good if commanded. A different account, on which God commands an act because it is good, appears to make goodness independent of divine will. These are arguments about particular accounts of morality, not settled conclusions about religion.
The question has also been used to examine other sources of authority. Comparisons with law or social convention are the article’s own teaching analogies; the same reasoning may not apply unchanged in each case.
Responses differ. Some divine-command theorists ground moral obligation in divine commands; Robert Adams, for example, distinguishes goodness from rightness in his account. William Alston argues that God’s necessarily good nature can serve as a standard. Natural-law and rationalist theories also vary and should not be assigned wholesale to one horn. One possible application is to use the dilemma to challenge divine-command accounts; that does not establish a single secular position on moral authority. These are selected replies, not an exhaustive map or a consensus.
The dilemma is not a proof that God does not exist, nor does it show that religious ethics is irrational. It challenges particular accounts of how moral value or obligation relates to divine will. Philosophers have proposed different replies, and their success remains disputed. In Plato’s dialogue, the question concerns piety and the gods, not a single monotheistic deity; later moral-command formulations are uses of the question.
One analogy asks whether a law is right because a majority approves, or whether the majority approves because it is right. This is a teaching comparison, not a historical variation from Plato, and the two horns may differ in plausibility from the theological case.
The Jowett translation of Euthyphro was read at the opening and at 9e–11b. Relevant sections of the two SEP entries and the IEP entry were also read for context and later interpretations. The dialogue establishes what its characters say; the modern move from Greek piety to monotheistic moral command is an interpretive application. The fourth-century BCE date is approximate, not a precise dating claim based on the dialogue itself. The cited interpretations do not establish a single answer or consensus.
Research check: 2026-11-01. Claim-level evidence, access limits, and unresolved issues are recorded in the source-review ledger.