 However, wouldn’t it be irrational just to believe a guy who claims to speak for God? Wahlberg acknowledges that normally, it would. He argues that in order for a Hearer H to be able to absorb trustworthy testimony from a speaker S in such as way that knowledge ensues, H must exercise doxastic responsibility. This means that she must be sensitive to and on the lookout for evidence and considerations that speak against the trustworthiness of S. If H fails to display such sensitivity, she cannot acquire knowledge from anyone’s testimony, even if it happens to be true. Now, doxastic responsibility clearly demands that testimony that purports to come from God be approached with a healthy dose of skepticism. In order for a responsible hearer to be able to absorb such testimony in a way that yields knowledge (supposing that the testimony really transmits revelation), there must be some circumstance that defeats the natural reasons for mistrust (such as the possibility that a putative prophet lies or is deluded).