Divine command theory holds that moral obligations are derived from the commands of a divine being, such as a god or gods.

In divine command theory, human reason is used to interpret and apply divine commands to specific situations, but it does not have the authority to create or reject moral principles independent of divine commands.

Thomas Aquinas is a prominent philosopher who developed and defended divine command theory in his Summa Theologica.

In divine command theory, morality is derived from religion because moral obligations are grounded in the commands of a divine being.

One criticism of divine command theory is that it relies on circular reasoning, as it defines moral obligations in terms of divine commands and then uses those commands to justify the existence of moral obligations.

The Euthyphro dilemma is a philosophical problem that asks whether morality is objective or subjective. It is named after the character Euthyphro in Plato's dialogue of the same name.

The Euthyphro dilemma presents two possible answers to the question of whether morality is objective or subjective: either morality is objective because it is based on divine commands, or it is subjective because it is based on human preferences.

Plato is the philosopher who first posed the Euthyphro dilemma in his dialogue Euthyphro.

The problem of evil is the problem of how to reconcile the existence of evil with the existence of a benevolent and omnipotent God.

The problem of evil arises from the contradiction between the existence of evil and the existence of a benevolent and omnipotent God. A benevolent God would not allow evil to exist, and an omnipotent God could prevent evil from existing.

Epicurus is the philosopher who first posed the problem of evil in his letter to Menoeceus.

The free will defense is the defense that God allows evil to exist in order to preserve human free will. This defense argues that if God prevented all evil from existing, then humans would not have the freedom to choose between good and evil.

Alvin Plantinga is the philosopher who developed and defended the free will defense in his book The Nature of Necessity.

The problem of moral diversity is the problem of how to explain, justify, and resolve the diversity of moral beliefs and practices across cultures.

William James is the philosopher who first posed the problem of moral diversity in his book The Varieties of Religious Experience.