Alvin Plantinga’s externalist religious epistemology, which incorporates a proper function account of warrant, forms the basis for his standard and extended Aquinas/Calvin models. Respectively, these models show how it could be that Theistic Belief and Christian Belief could be warranted for believers in a properly basic manner. Christianity and Islam share fundamental theses that underlie the plausibility of Plantinga’s models: the Dependency Thesis, the Design Thesis, and the Immediacy Thesis. Accordingly, an Islamic worldview can endorse the truth of the standard (...) A/C model but recommend a uniquely Islamic extension. Thus, there are multiple viable extensions of the standard A/C model. That there are Multiple Viable Extensions of the standard A/C model grounds the Multiple Viable Extensions Objection (MVE): given the truth of the standard A/C model, it is more likely than not that a given extension of it is probably incorrect, thus those who accept some extension of the standard A/C model have a reason to think that model they affirm is incorrect. After considering the plausibility of second-order knowledge states and responding to objections, I conclude that because a uniquely Islamic extension of the standard A/C model advocates a limited second-order awareness condition on knowledge, it is plausible to think that an Islamic model of warrant (and its corresponding Islamic extension) suggests ways in which a satisfactory response to the MVE objection might be formulated. (shrink)