Matthew Ferguson has posted a very thorough article clearly setting out a weakness in Bart Ehrman’s argument with William Lane Craig over the probability of the resurrection of Jesus.
Simply to say, as Ehrman does, that the resurrection is the “least probable” explanation and therefore it can never qualify as a historical explanation really begs the question. Craig grants that it is indeed the least probable explanation a priori but that the evidence is strong enough to lead the disinterested mind to conclude that it does turn out to be the best explanation for the evidence available. As Ferguson points out:
I don’t think that Ehrman presents the strongest case against miracles (including the resurrection) when he defines them, from the get go, as “the most improbable event.” This kind of definition is too question-begging and it opens the door to the stock “naturalist presupposition” apologetic slogan. The reason we are looking at stuff like the texts that discuss Jesus’ resurrection is precisely to see whether such a miracle could ever be probable.
Ferguson’s article clearly demonstrates the application of Bayes’ theorem in assessing historical evidence for certain propositions and he links to another article discussion the way probability reasoning works in historical studies. (I especially like his opening point in that article pointing out that history is not something that “is there” like some natural phenomenon waiting to be discovered but is a way of investigating the past.) The article also links to another relevant discussion addressing apologist arguments against the likelihood that the disciples hallucinated the resurrected Jesus.
The article is Understanding the Spirit vs. the Letter of Probability.
I won’t steal Matthew’s thunder by singling out here where he believes the emphasis belongs in discussions about the evidence for the resurrection. Suffice to say that I agree with his conclusions entirely.