“The reason I was born and came into the world is to testify to the truth. Everyone on the side of truth listens to me.” “What is truth?” retorted Pilate. (John 18:37-38)First, if someone makes a clear statement about their disbelief in their ability to know things, clarify the case being made. Nicely ask him or her to support that claim – and nicely ask some tough questions. Can the agnostic back up the claim that nothing can be backed up, or give reasons to believe that there are no reasons to believe? If nothing else, it presents an intellectual dilemma.
“I myself have carefully investigated everything from the beginning, I too decided to write an orderly account for you, most excellent Theophilus, so that you may know the certainty of the things you have been taught.” (Luke 1:3-4)