If the existence of God can not be proven, and it can not, why do so many feel confident that He exists? Seriously, I recently attended a presentation by J Warner Wallace, author of Cold Case Christianity, and he opened with this question. "Is there anyone here tonight that believes in God"? Of course the majority raised their hand. He then chose a few and ask them why. All of the responses were the same. They ranged from I feel God in my heart. The Bible states it and I believe the Bible. To I believe because of all the blessings I receive and the comfort He provides. I would assume there is not anything per se wrong about any of the answers given. Jim responded by saying that each of them may be Mormon. It made for a good laugh. But do you see the subtle point Jim was making? None of the answers given actually answered the question. So, how do you know God exists? I am glad you ask!
The majority of people believe in God or at least a god. But why? As stated above He cannot be proven. Do we believe simply because it is what we have been taught? Or where we were born? Both are typical objections, by the way, with simple answers. However, that is not our goal here. The goal is to consider how do you know God exists. This may sound harsh but let me help...you don't.
Believing in God and knowing He exists are two separate thoughts. One can believe anything. It doe not make it true. The feelings, or emotions one has concerning God are simply that; feelings and emotions. Sharing them with others is typically answered with: that may be true for you but not for me.
Knowing God exists is a cumulative case of facts, evidence and reason. The best we can do is follow the evidence and decide if indeed it leads to the existence of God. There is plenty of evidence, and for myself, I feel overwhelming leads to the conclusion of God's existence. It's what I do for a living. Outside of the Holy Spirit it is what keeps me grounded in my faith. Without the evidence I would have given up many times in the past, and if you were aware of my situation, I could very easily walk away now. But I know, based on the cumulative case of facts and evidence God indeed does exist.
Relying on evidence does not show a lack of faith. The Bible commands us to have an answer for why we believe. Faith must still be present regardless of the evidence as God still cannot be proven either way. To follow the Word of God is to love Him with your heart, soul and mind. If not, then how do you know if He exists or not?