I surveyed the Bible to find its position on the status of knowledge. Does the Bible say knowledge/certainty is impossible to the unbeliever? Actually, I found that sinners can know many things. What they can’t know is the deceit of their own heart. But they can know good and evil. In fact, it is for knowing the good, yet choosing the evil, that people are condemned (Romans 1-2).
Below is a set of verses to help combat the mystical approach to knowledge (presuppositionalism). We see the common-sense view of knowledge: we learn by observation and reasoning. People come to faith because they see evidence; seeing leads to believing.
Knowledge plays a huge role in Scripture. In these verses we find a treasury of insight about what knowledge is possible to man and about how knowledge works. Enjoy!