As a christian and I share the gospel to a non-christian especially if he or she is an atheist, my chances to open up the conversation is already closed.
When an atheist says that he or she do not really believe in God, my opportunity of sharing and making them accept and believe that Jesus is Lord and Savior, and that He is God is already gone. The lines from John 1:12 which says “Yet to all who did receive him, to those who believed in his name, he gave the right to become children of God” or the popular verse in John 3:16 will not really make sense anymore. They do not believe in God, period.
That is why it leaves us believers and non-believers to a never ending argument. But why is that arguing about God’s existence will not really lead those who do not believe to believe and why is convincing them will never work?
The Truth about Jesus Being God
Jesus is God because He is the only one in History, in the whole universe who was able to become human for us something that those who are already a human cannot do. Humans cannot be God. Though many of us tried. We tried to have more knowledge by acquiring degrees, finishing certain courses, read books, write books etc. We tried to lead and draw people to follow us by acquiring roles, power, position. We prove ourselves by constantly adding up to what we have already attained. Still those were not enough, we were still not God.
While Jesus, He never earned a degree. He did not wrote a book, claimed a political position, led an army or fighting squads. He did not need to quote several famous words of famous people when He gave speeches but He draw large crowds to Him. (Read reference: http://y-jesus.com/wwrj/3-is-jesus-god/)
A lot of times we try to convince others to believe in God by arguing how great He is. We forget to point out that He became low, humbled himself by becoming a human for us. Live like a human, feel what humans feel. Allowed himself to be subjected to human standards, even being subjected to death as a human. As a God He could stop it. But avoiding what we humans tried to avoid is not His way of showing why He is God. We could never understand it and that is what makes Him God.
Let this mind be in you which was also in Christ Jesus: 6Who, existing in the form of God,did not consider equality with God something to cling to, 7but emptied Himself,taking the form of a servant,being made in human likeness. 8And being found in appearance as a man,He humbled Himself and became obedient to death—even death on a cross. 9Therefore God exalted Him to the highest place,and gave Him the name above all names, 10that at the name of Jesus every knee should bow,in heaven and on earth and under the earth, 11and every tongue confess that Jesus Christ is Lord,to the glory of God the Father.(Philippians 2:6-11)
The reason why we will never convince atheists and other non-believers of Jesus is because convincing or arguing is not what we need to do. Always, the best way to reach out to people and share Christ to them is to stop being God. We should stop arguing like we know everything. We should always start by praying for those whom we want to share the gospel to and depend on God by the power of the Holy Spirit and stop pointless arguments that leads to nothing. Our everyday role should be to imitate Christ and wear His humility. “My atheist friends or neighbors may not respond to me, but I will still love them and will keep praying for them.”