I think that the existence of God can be shown by demonstrating what God is NOT, since God is "Pure Act" and thus our minds cannot form a concept of Him. The human mind cannot form a concept of "IS", but God "IS". He's above, NOT below, purely human intellection. This, however, is the intersection between metaphysics and faith: God is pure act: "IS"......and the name He gives to Moses in Exodus 3:14 is "I AM WHO AM". This is an overlap of reason and revelation.
So now, let me understand, with Matthew around we get to talk specifically about the Christian God? The God of the Bible, and ..all that? Okay, just testing the parameters.
*rolls up sleeves*
The argument of negative attributes is a very common one, especially amongst (my favourite) medeival theologians. The three attributes of God - omnesience, omnipresence, omnipotence - are postulated as negatives. Instead of all-knowing, we have a God who is without ignorance. Instead of all-present, we have a God not conceptually definable in space and time. Instead of omnipotence, we have a God without limits.
But this tells us nothing, especially when we are asked to believe in God. All this ineffability leads is to a path where the Christian must say his knowledge does not come from reason - the traditional means of acquiring knowledge through sensory perception and verification - but faith, which is an entirely different means of acquiring knowledge.
There is absolutely no REASON or rationality for one to believe in a God. There is only faith, which is by it's very nature irrational.
Now, this is entirely supported...by the Christian's own scriptures. Here's a TON where the message is, very plainly - "Reason and intellect is not the way to understand/know God".
I Corinthians 3:18-20
Do not deceive yourselves. If anyone of you thinks he is wise by the standards of this age, he should become a fool so that he may become wise. For the wisdom of the world is foolishness in God's sight. As it is written:
He catches the wise in their craftiness. [Job 5:13]
and again:
The Lord knows that the thought of the wise are futile. [Psalms 94:11]
Colossians 2:8
Beware lest any man spoil you through philosophy...
I Corinthians 1:26-27
Brothers, think of what you were when you were called. Not many of you were wise by human standards; not many were influential; not many of noble birth. But God chose the foolish things of the world to shame the wise.
I Corinthians 1:18-25
For the message of the cross is foolishness to those who are perishing, but to us who are saved it is the power of God. For it is written:
I will destroy the wisdom of the wise; the intelligence of the intelligent I will frustrate. [Isaiah 29:14]
Luke 10:21
At that same hour Jesus rejoiced in the Holy Spirit and said, "I thank you, Father, Lord of heaven and earth, because you have hidden these things from the wise and the intelligent and have revealed them to infants; yes, Father, for such was your gracious will."
Where is the wise man? Where is the scholar? Where is the philosopher of this age? Has not God made foolish the wisdom of this world? For since in the wisdom of God the world through its wisdom did not know him, God was pleased through foolishness of what was preached to save those who believe ... Greeks look for wisdom, but ... the foolishness of God is wiser than man's wisdom, and the weakness of God is stronger than man's strength.
Far from
A theist does not question the sheer, point-blank facts of reality and truth. They are axiomatic.
we see the theists in scripture completely disregarding the sheer, point-blank facts of reality and encouraging their followers to do the same.