Adam and Eve had first-hand empirical evidence of God’s existence. He walked in the Garden with them. Their problem was that God told them they could not eat of a certain tree. – p. 113
We tend to think that refusing to exalt Christ is staying true to our self-will and personal freedom when really we are condemning ourselves. Sure, we can pretend to stay true to ourselves, but if you want to talk about reality, all of that is completely trivial if this life is an island and He's the only pilot with a plane and a flight plan.