Is there undeniable evidence?
If there was undeniable evidence either for or against god, then everyone would believe one way or the other. In reality, people are split between atheism (belief in no divine power), agnosticism (neither believing nor denying the existence of a God) and those of faith (belief in God). Even those who do believe are divided themselves about the nature of God (hence the world religions like Islam, Hinduism, Buddhism and Christianity).
If you can’t prove God, what next?
Just because you can’t prove God, is not to say there aren’t some strong arguments as to the plausibility of his existence. So for those who have high expectations of Christian evidences, you may be disappointed. If you have always believed in god, you might even be worried.
Not to worry, it’s actually better that way. If God was visible, if we could literally see him every moment of our lives, how could we say “no” to him? Faith wouldn’t be faith; it would be sight (see 2 Corinthians 5:7). To cultivate a genuine relationship with God requires, as in human relationships, a certain emotional space between the parties.
No one can prove scientifically that God exists, because he isn’t a physical being. Now this isn’t a cop-out (“How convenient that your alleged ‘God’ has never been sighted!”). There are many real, scientifically observable things that cannot be detected with the eye, such as sound waves, protons, gravity and magnetism. We understand them by their properties and effects.
Since science can only explore the empirical, what can be measured through instruments, the lack of such evidence isn’t a logical reason to reject God’s existence. Such an argument from silence bears no weight, logically speaking. “Absence of evidence isn’t evidence of absence.”
Time to think
In this course, you will be exposed to ideas that are complex and some that you may disagree with. At the end of the day, we must make our own choices. If you have already decided what you believe and are not open to persuasion, then it will be of no benefit to look at the evidence (since you will find a problem with even reasonable points). If you are open to learning and believe that your views may evolve with new knowledge, then this course will be of value to you.
The material in this course comes as a product of years of study and the sources of hundreds of books (there is a list of additional resources at the end of the course). Many of the ideas in this course are not new, you may just not have heard them yet.
What other things do we accept even though they cannot be empirically proven?
Many things cannot be empirically proven, yet are real nevertheless: logic, numbers, justice, love, beauty, and science itself:
In summary, if we reject the existence of what cannot be proved scientifically, we end up denying half of all reality such as beauty, logic, the spiritual world, and much more, including science itself! Fortunately (as we will see later in this course), there are strong reasons for believing in God. This isn’t, however, the same as a rigorous scientific proof.