I came across a fair share of skeptics online who ask what evidence it would take for a Christian to admit that their faith is vain. Generally I come across that question asked on a static website which doesn’t illicit comments, so I’m throwing my answer out here just for fun. There are two things which I would accept; the first is very specific and definitely makes Christianity vain while the other is more general and may simply represent an insufficient knowledge of Christianity itself.
- Concrete evidence that Christ remains in the grave. Simply stating that “the dead do not rise” is not a valid argument; Christ’s resurrection in defeat of death was by definition an exception of the norm. As Paul said, if Christ is not risen, then we believe in vain and ought to be pitied.
- Something which contradicts the Orthodox Christian worldview. This one’s tricky because it seems like everyone would have something which seems to contradict the Christian faith. The problem of evil is perhaps the most famous example, yet evil (specifically Satan & sin) fit the Christian worldview perfectly and are necessary within it. Evolution and the big bang are other answers which may be offered. Fair enough, but that unbelievers would come to contradictory understandings of the universe is foreseen and accepted in biblical theology; such things are by no means contradictory.
So yes, there is evidence which I would accept that would make me rethink my faith; however, I can stand very steadfastly in my faith knowing that the object of my faith is He who was dead and is alive forevermore.