Part 1: Spot the Equivocation
Fundamentalist Christians often charge that atheists can’t know that God does not exist (after all, we can’t prove the negative) so atheists have to take it on faith that there is no God, just as fundamentalists take it on faith that God exists. To an extent, fundamentalists use logic and evidence to support their religious claims, but if you look beneath the surface, if you ask “how do you know” often enough (but how do you know that the Bible is the inerrant Word of God?), you finally arrive at the answer: “you just have to have faith,” or other creative variants like “I don’t have enough faith to be an atheist.” The idea is to put atheism on equal footing with Christian fundamentalism; to show that atheism is no more evidence based than Christianity.
Have you spotted the fatal flaw yet? The flaw is that the fundamentalists equivocate the meaning of the word, “faith.” When applied to religion, fundamentalists mean blind faith – the willingness to accept and believe without evidence (and even in the face of strong evidence to the contrary). On the other hand, when they apply the word, “faith,” to conclusions based on evidence, they mean that if we don’t know for sure (i.e., if we don’t have proof), then we have to believe that our conclusions are true. However, considering the available evidence, and then accepting the most reasonable conclusion based on the evidence is far from blind faith – it is “reasoned belief.” When referring to the “blind faith” of Christianity, and the “reasoned belief” of skepticism, fundamentalists use the same term, “faith,” for both, even though the meaning of each is quite different. Once you make the distinction, the charge that atheism is no more evidence-based than Christianity, crumbles.
Part 2: The “Faith Game”
Just for fun, consider an aspect of faith from the fundamentalist Christian viewpoint. The author of Hebrews (let’s just call him “Paul” for now) says in Heb 11:1
Now faith is the substance of things hoped for, the evidence of things not seen.
According to Paul, faith is the evidence. Fundamentalists who accept Intelligent Design claim that we have to take evolution on faith since we have never seen animals evolve (never mind that we actually have seen animals and plants speciate, and we have ample evidence to consider evolution a fact). Therefore, they claim that evolution is “not seen” but that proponents of evolution (biologists) simply take it on faith. Then according to Paul (and fundamentalists by definition, take Paul’s words as absolutely true), the “faith” of the biologists is itself the evidence of evolution; the biologists’ faith is “the evidence of things not seen”. By their own reasoning, fundamentalists must admit that there is evidence for evolution.