How could it occur to anyone to demonstrate that God exists unless one has already allowed Himself to ignore Him? A king's existence is demonstrated by way of subjection and submissiveness. Do you want to try and demonstrate that the king exists? Will you do so by offering a string of proofs, a series of arguments? No. If you are serious, you will demonstrate the king's existence by your submission, by the way you live. And so it is with demonstrating God's existence. It is accomplished not by proofs but by worship. Any other way is but a thinker's pious bungling.
Soren Kierkegaard...the reason for [this age's] anxiety and unrest is because in one direction, 'truth' increases in scope and quantity - via science and technology - while in the other, certainty and confidence steadily decline. Our age is a master in developing truths while being wholly indifferent to certitude. It lacks confidence in the good.
Soren Kierkegaard