t0m,
Thanks for the response. You gave me a lot to sift through, but I can appreciate your "ability to question and doubt". My entry into philosophy was spurred by a period of intense doubt. I was a Christian at a very young age, and I believed strongly, but anyone who has been around knows what life can dish out, and after my share of hard knocks, I began to question things. Suddenly, I was hit with the same feeling that probably hit Sartre and Nietzsche: emptiness and despair; the fear of the black void, if you will. I became truly terrified. I sincerely hoped that God existed, but I asked myself, had my last thirty years up to that point been a waste? Had I been following some sort of false hope, or even worse, a lie?
So I immediately started searching for answers. What I found is that, for a sincere seeker of truth, reason leads away from dread or despair, and towards hope, love, and even something beyond all of it.
Now, let me attempt to answer a couple of your concerns:
"All punishment and reward is finite." Yes, that is true on atheism. If atheism is true, then our lives would be limited to the physical, and constrained within our physical bodies; there would be no life after death, and thus no reason to be concerned with any notion of rewards or punishments beyond the grave. Of course, that assumes atheism is true. On the other hand, God's existence would allow for other possibilities; for example, eternal life. If life were to extend beyond the physical world of objects, then reward and punishment might also extend beyond that world.
"How does God make morality objective?" St. Anselm saw God as the greatest conceivable being. Simply put, if one were to conceive of a great being, and you could imagine anything greater or better, then that would be God. So God, if he exists, would need to be maximally great. Classical examples of maximally great attributes would be things like omnipotence, omniscience, omnipresence, moral perfection, and personal existence. If God were indeed morally perfect, then objective moral values would be grounded in his character. By his very nature, he would command what is right, and give what is good. So if God exists, morality would not merely be a subjective set of social conventions produced through socio-biological evolution, but instead, morality would be objectively grounded in the nature and character of God.
Do we not still have our terrible freedom? Would we not make the same calculations? All believing in God, we could still debate the legitimacy of his moral authority. If we throw infinite punishments into the mix, then we arguably just have a fearsome tyrant. Moral action would only be "objective" in this case by being undeniably and even immeasurably prudent. — t0m
First, your question is about free will. My argument doesn't even address that. The question I am addressing with this argument has more to do with the nature of morality. It is at least possible that morality exists independently of human beings. Many philosophers (including Plato) believe that moral values could exist as abstract objects. Furthermore, some see certain moral truths as necessary. For example, consider the statement, "malice is good". There is no possible world in which malice would be truly good. Furthermore, there exists a possible world with only moral truths such as "malice is bad", and "kindness is good".
Second, you seem to have confused punishment with morality. Moral values do not always carry obligations. For example, it may be good for you to start a non-profit, but you are not obligated to start a non-profit. It may be good for you to take a humble job, but you are not obligated to do so. Because moral values do not carry obligations to act, consequences are irrelevant, and therefore punishment need not be considered when discussing moral values. Actions come in when we discuss moral duties, but even then, the question is about the nature of those duties, and whether they stem from objectively grounded values, or subjective experiences.
If you are interested, I hope you will refer back to the argument, and read a few of my responses to different people. I believe I have illustrated it fairly well. Thanks again.