  Many have thought the right answers to these questions are found in an appeal to God. On their view, moral principles are the expression of God's will — they are His commands to us — and they get their authority from their source. In important ways, though, this merely shifts the puzzles back a step.  Whatever problems one might have making sense of eternal transcendent standards re-emerge when trying to make sense of an eternal transcendent being who might issue commands. And, as Plato emphasized in Euthyphro, one is also left with the difficulty of explaining why God's commands are authoritative.  