So we Don’t Prove anything - We just have Faith that the Earth Rotates, that Breathing will keep us alive, that food is good for us, that if we drop a ball it will fall to the ground etc. So rather than talking about Proof in anything whether science or religion, we are talking about faith.
We are only talking about faith if that is all you mean by faith, but I suspect you mean something different from that. The important distinction to make is not between faith and proof, but belief based on faith and belief based on evidence.
I see the weak view of faith–the one that sees faith as equivalent to the belief that the sun will rise tomorrow–more and more. It’s am attempt to slip religious faith in the back door and then reveal it to be something very different, i.e. the so-called virtue of believing in the face of weak and even contradictory evidence.
In Timothy Keller’s “The Reason for God”, the author makes the strong point that we need to hold our beliefs we are choosing as alternatives to Christianity to the same standards we use in doubting Christianity, but he ends up making his case by arguing that since our beliefs can not generally be proven, that we are making “leaps of faith” all the time. He says, “All doubts, however skeptical and cynical they may seem, are really a set of alternate beliefs. You cannot doubt Belief A except from a position of faith in Belief B."
He’s set up “belief based on faith” as in opposition to “belief based on proof,” which I don’t think is the real issue. I would agree with him if he said “you cannot doubt Belief A except from a position of believing (rather than ‘faith in’) Belief B,” but I can’t see what is added to say that we must have FAITH IN Belief B unless he wants to say that belief in anything without proof is all he means by religious faith. I’ve ecome to call this move the “it’s all just different flavors of koolade” argument. Such a move reduces faith to simply be a synonym for belief since no beliefs (or at least very few of them) are thought to be conclusively proven. In effect he is saying that pretty much all beliefs are taken on faith. Can you prove conclusively that the earth is not only 10,000 years old? So, it’s just faith then. Can the scientific method be used to justify itself? Then it’s just faith. All our sets of beliefs are all just different flavors of Koolade, and Christianity tastes the best, so drink up!
Religious faith is not simply the “leap of faith” in believing that the sun will rise tomorrow even though we can’t prove it will in advance. Proof is not the issue at all. The issue is whether or not we are basing our beliefs on evidence. We may never have complete and conclusive evidence to justify every belief, but making our best guess based on the available evidence is not what we generally mean by faith.
For example, believers like to ask, can you prove that love exists? It depends on how you define love. If you think of love as nothing more than a subjective emotional experience, then we can’t prove it. We just know it when we feel it. Is God just an emotional feeling?
Proof is supposed to be evidence or argumentation that is so good that it compells belief. I’m not sure that anything like that exists to support any of our beliefs, especially if we are supposed to be able to answer the Cartesian skeptic who may actually be a brain in a vat, so I don’t think the issue is proof so much as having good reasons for our beliefs. We all can agree that we like to be reasonable whether or not we can agree on what standards we have for what is reasonable or what we wold consider to be proof for us. I think of rules of logic as descriptive rather than prescriptive of what sorts of arguments are convincing, but no arguments may literally force belief for all people.
So maybe we can’t prove that someone loves us, but only because we can’t prove anything to the likes of the Cartesian skeptic, but we can accumulate evidence that someone loves us. We can describe exactly the sort of evidence that would be consistent or inconsistent with that claim. What sort of evidence could ever be thought to be inconsistent with the claim that God exists? If no such evidence is imaginable, then belief in God is not based on evidence. If it is meaningless to imagine the sorts of experiences that would convince us that a claim is false, it seems to me that it doesn’t mean anything to say that the claim is true.
I think Keller is slippery in justifying the broad traditional view of faith as belief in someone else’s revelation and fidelity to a religious tradition along with trust in God as if it were just like any set of beliefs that we accept without proof by simply pointing out that we believe things without proof all the time. What we don’t do is believe things without evidence all the time. We all generally want to think we have good reasons and evidence in support of our beliefs, but for some reason it is thought to be a virtue to believe in the absence of good reasons and evidence in one special category of beliefs, namely, religion, and we call that virtue, faith. See the oft cited “doubting Thomas” of John 20: “Jesus saith unto him, Thomas, because thou hast seen Me, thou hast believed: blessed are they that have not seen, and yet have believed.” In every other aspect of life, we would see it as a huge liability to not base our beliefs on evidence. Why should we make an exception for religious belief?