The universe is based on the impossibility of forming an actual infinite by successive addition. This argument does not deny the possibility of the existence of an actual infinite, but the possibility of its being formed by successive addition.
These purely philosophical arguments for the beginning of the universe have received remarkable confirmation from discoveries in astronomy and astrophysics during the century. These confirmation might be summarized under two heads: firstly the confirmation from the expansion of the universe and the secondly the confirmation from thermodynamic properties of the universe.
The first confirmation is about the theory of the Big Bang (Big Bloom) is that once, all the matter in the universe was concentrated into an incredibly dense mass. It was said too much smaller than the eye of a needle for some unknown reason, 15000 million years ago it began expanding. The Big Bang theory is the Dominant scientific theory about the origin of the universe, According to the Big Bang; the universe was created some time between 15-20 billion years ago.
The second confirmation of the beginning of the universe is based on the thermodynamic properties of various cosmological models. According to the second laws of thermodynamic, process talking place in a closed system always tend toward s a state of equilibrium. The universe will reach a state of thermodynamic equilibrium, known as the heat death of the universe. The universe will expand forever or eventually re-contract.
Many people have come to the point in their lives where they have serious doubt about God, or have already denied his existence. Most of those people do not do so because firmly held philosophical conviction. They do so because of personal disappointment with God.
Many people have cried out to God in prayer. They have called out to him for help. But they were looking for did not come. So they think that there is God. Other has been disappointed or hurt by those who represent God. They were abused in some way, perhaps, or given bad counsel, or snubbed. They were expecting better behaviour from those people who represents God. They think that the reason of God allowing such as these to serve him because he isn’t exists.
Other have been overwhelmed by the evil and suffering of this world. For many in this group this evil and suffering has touched them personally and often. Tragedy has found them. Or others have cruelly treated them. The rest see and hear it all around them, violence, abuse, disease and famine, Natural disasters like fire, flood, wind, and earthquakes. These people wonder how could an all-powerful and loving God allow such things. They conclude that is doubtful that such a God exists. In all causes, those who doubt or deny God’s existence because of personal disappointments do so because God did not perform according to their expectation.
There are some people who do doubt or deny God’s existence because of philosophical reason. They doubt or deny God because their worldview does not leave room for a personal God. All those whose worldview is closed fall this category. The worldview that views the universe as a closed system, which work according to unchanging laws allows no outside intervention and can be perceived only by reason and the senses. Many people currently refuse to acknowledge the existence of a person God accountability, obedience or control.
There are other arguments about the not existence of God. The first argument is by Nietzche, which conclude that there is no God. He argued that God was “dead!” There were no natural laws, and there was no order. The second argument was by Epicurus, He believed that if there is a God he should be able to prevent future evil in the world that God can stop evil and chooses not to stop it.
I think, in my opinion, agree with people who argue in believe of God’s existence. In conclusion, we have seen on the basis of both philosophical argument and scientific confirmation that it is plausible that the universe began to exists. Given the intuitively obvious principle that the universe has a cause of its existence. On the basis of our argument, this cause would have to do uncaused, eternal, changeless, timeless, and immaterial. I conclude that it is rational to believe that God exists.