Is human reason alone sufficient for moral knowledge or must we also rely on divine revelation in order to know the difference between right and wrong?

Is human reason alone sufficient for moral knowledge or must we also rely on divine revelation in order to know the difference between right and wrong? As always, define the terms. In your answer be sure to also consider, as a corollary, what you think a satisfactory moral theory should be like. Furthermore, be sure to give reasons and consider evidence while presenting your argument. You should think about what reasons and evidence we have for taking either the and for whatever view you think happens to be true. Lastly, present your argument as a well-formed, formal argument at least once in your response [i.e., clearly list premises (1, 2, … n, etc.) and the conclusion vertically].