Jesus Christ who said “I am the truth” not simply “I am speaking the truth” but “I am the truth, the way and the life”, God is the source of all truth and without God there can be no truth.
This I believe is one of the most powerful arguments for theism, because without God, the words true or false simply become meaningless, so the question I ask the atheist is if there is no God, why do you believe it to be true?
C.S. Lewis explains it well I believe.
“Supposing there was no intelligence behind the universe, no creative mind. In that case, nobody designed my brain for the purpose of thinking. It is merely that when the atoms inside my skull happen, for physical or chemical reasons, to arrange themselves in a certain way, this gives me, as a by-product, the sensation I call thought. But, if so, how can I trust my own thinking to be true? It’s like upsetting a milk jug and hoping that the way it splashes itself will give you a map of London. But if I can’t trust my own thinking, of course I can’t trust the arguments leading to Atheism, and therefore have no reason to be an Atheist, or anything else. Unless I believe in God, I cannot believe in thought: so I can never use thought to disbelieve in God.” – C.S. Lewis
The theory that thought is merely a movement in the brain is, in my opinion, nonsense; for if so, that theory itself would be merely a movement, an event among atoms, which may have speed and direction but of which it would be meaningless to use the words ‘true’ or ‘false’. C.S. Lewis
If the solar system was brought about by an accidental collision, then the appearance of organic life on this planet was also an accident, and the whole evolution of Man was an accident too. If so, then all our present thoughts are mere accidents – the accidental by-product of the movement of atoms. And this holds for the thoughts of the materialists and astronomers as well as for anyone else’s. But if their thoughts – i.e., Materialism and Astronomy – are mere accidental by-products, why should we believe them to be true? I see no reason for believing that one accident should be able to give me a correct account of all the other accidents. It’s like expecting the accidental shape taken by the splash when you upset a milk-jug should give you a correct account of how the jug was made and why it was upset. – C.S. Lewis
John Lennox also explains it well I believe
I believe in God because I believe there is evidence for God, for example, in the very fact that we can do science, we believe that the universe is rationally intelligable. Why does a scientist believe it is rationally intelligable? Atheism tells us that the human mind is the human brain and it’s the end product of a mindless unguided process, why should I believe anything it tells me if thats the case? Whereas theism tells me that there is intelligence behind the universe and behind the human mind which fits perfectly with science. So part of the evidence for God would be the fact that we can do science.
Infact the rise of science in the 16th and 17th century came about because people expected law in nature, because they believed in the Law giver (God). So science and faith in God fit perfectly together. – John Lennox
It’s not science and theism that are in conflict as most atheists like to claim, it’s actually science and atheism that are in conflict, because atheism cannot even trust the cognitive faculties we use to do science, as C.S. Lewis say’s atheism and science is like expecting the accidental shape taken by the splash when you upset a milk jug should give you a correct account of how the jug was made and why it was upset.
By denying God, the honest skeptic becomes skeptical of his skepticism.
Thank you for reading