It is sometimes amusing to listen to people try to deny God. Whether it is to deny His existence or justify why they have not accepted him as Lord of their life, the excuses are almost laughable. No matter how hard they try, the reasoning just does not stack up for a Believer. And Solomon captures it all above - there simply is no basis against God.
So why do people continue to struggle with such a simple concept? They are simply trying too hard! Salvation is not built upon scientific proof or historical accuracy but upon child-like trust. Jesus tells us in Mark 10:15- Verily I say unto you, Whosoever shall not receive the kingdom of God as a little child, he shall not enter therein. A child does not try to use logic to make a decision - simply trust. So must we approach God for salvation. The proof comes upon believing in Him. While you may have difficulty verbalizing your emotions and trust - you will know deep down in your heart and soul that he exists.
While we may struggle trying to lead others to Christ. When they have many rebuttals based upon science, public opinion and history - we need to pause from the debate. We are not here to debate or prove but to present a living example of God's love. If we follow His will, He will take care of the rest.