In this paper, I try to facilitate the understanding of the concept of ‘omniscience’ by taking into account the terminology developed in Ludwig Wittgenstein’s On Certainty. Thus, I start by explaining why omniscience can be regarded neither as grounded knowledge nor as ungrounded or objective certainty. Instead, omniscience might be considered as subjective certainty, which has the advantage of leaving scope for a doubt that enables and strengthens religious faith. Lastly, I clarify how God’s omniscience would be enriched if He (...) were informed of—without needing to share—our objective certainties, in addition to which I highlight two paradoxes that would arise if we disagreed with God regarding some of our objective certainties. These paradoxes reveal that even though the believer could not understand literally God’s statement, it might strengthen her faith if she realized and accepted that a true and consistent commitment to such statement entails the suspension of her own capacity for judgment. (shrink)