(quote from RealReality.org/Real_Faith_and_Reason_Vol_2_-_Scientia.pdf)

The premise is the proof. And yet, we must prove the premise to ourselves. How do we prove a premise? We certainly can’t use another unproven premise. What good would another unproven premise do? And we can’t just declare made-up stuff to be an axiom since applying the label “axiom” has no power to make the made-up stuff true. But if we can’t prove a premise is true, the premise is unknown. And we can’t use the unknown to prove anything. Without true premises, we can’t know anything at all. However, we’ve already identified a way we can know reality with certainty. This way is divine revelation through Jesus Christ. He is the truth, and all knowledge and wisdom are hidden in Him. We can listen to the voice of the Absolute God.

(end quote)