What have reason and logic to do with faith?

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Last time I considered the Christian claim that reason and logic can only derive from God, and that non-believers’ use of them is nothing more than a illicit hijacking of powers supplied by the God they deny. Why is it important to modern day Christians to attribute reason to their God? After all, the bible only ever speaks disparagingly of reason. It is, it says, the path to self-delusion; Proverbs 3.5 warns ‘trust not in your own understanding,’ while faith, according to Paul far surpasses the limitations of reason and rationality. More than this, as I discuss here, the God of the bible is far from reasonable and logical himself. His response to every issue is the death penalty, mass murder and blood sacrifice.

According to Christians, human reasoning makes no sense if it is ‘merely’ the product of evolution. A random and undirected process cannot produce a reliable rationality on its own. Naturally, they are never entirely clear why this is the case; evolution has, after all, led to other distinctly human characteristics on which we regularly depend, imperfect though they may be: language, memory, social bonding and creativity among them.

However, having singled out reason and dismissed evolution as its cause, Christians then jump to the conclusion that the human capacity to think must come from God. According to Tim Keller, rationality is a ‘clue’, planted in every human being, to God’s existence.* It has evidently never occured to Keller that, by the same token, the human capacity for unbounded irrationality is likewise a ‘clue’ to the non-existence of any rational deity.

Human reasoning – and there’s no other kind – is, like every other evolved characteristic, flawed. It is only as secure as the premise from which it proceeds. Get that wrong, by adopting a premise with an insufficiency of evidence (such as ‘God is a God of Reason’) and human cognition will only ever abandon us in the blind alley of faith.

*The Reason For God, p141

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Why logic, reason and truth have nothing to do with any god

Blog354

I’ve recently encountered again the ‘argument’ (it’s actually no more than an assertion) that without God logic and reason would not exist.

Here’s how ‘Liam’ puts it in a comment on Escaping Christian Fundamentalism:

If anything, the illogical nature of a godless universe is a massive pointer to a God, without Whom there is no reason or truth or logic…

To a degree this is right; if God made the universe and everything in it, including reason and truth and logic then, yes, they would owe their existence to him.

But it all hinges on that word ‘if’.

Equally, if God doesn’t exist, it follows he could not have created the universe and everything in it – including logic, rationality and truth.

One cannot take these things and say they are evidence that God exists and also that they only exist because God made them. Not unless you’re happy with a tautology – a feedback loop where each assumption is its own conclusion. Demonstrate, on the other hand, that God exists independently from the human imagination and then maybe you might be able to make the case that he created logic and reason. As it is, pointing to human attributes like logic and reason doesn’t ‘prove’ that God exists; it demonstrates only that these attributes are characteristics of the human mind. Logic, truth, reason (and mathematics), like God himself, have no independent existence outside of human cognition. They are ways of explaining life and the universe; they are not life and the universe themselves.

If, as seems probable, God doesn’t exist, then evidently, logic, truth and reason did not originate with him. Indeed, they took billions of years of slow evolution to develop. We know of no other way for intelligence to arise; and only intelligence produces logic, reason and truths. No God required