Long ago, Plato, in his dialogue Euthyphro, exposed the fundamental flaw in the first role assigned to God, that is, God as moral dictator, a being whose word defines what is right and wrong. Here is the dilemma that exposes the flaw. Either there is a way for us to determine what is right and wrong apart from God’s commands or there isn’t. Do you think torturing a child for amusement is morally wrong? How about killing someone to take over their property? Presumably, the answer is “yes,” as it would be to any other question that asks about conduct anyone (or at least who is not pathological) would consider morally repugnant. This indicates that we do have a sense of what is right and wrong independent of any commandment from God. You don’t need to study the Bible to find out whether torturing a child is wrong. If we have this sense of right and wrong apart from God’s commandments then we do not have to rely on God’s commandments. We can determine for ourselves what we should do.
–Ron Lindsay, The Necessity of Secularism, pg 81