@Eutaby,
the main reason why people believe in God is because of Cause and Effect.
Let us say you come home and find a nicely made cake. You taste it and it is nice. You thank your mom as she has made the cake. So who made the cake?. Your mom. Your mom is the cause, the cake is the effect. Something does not come from nothing. Nothingness is nothingness, we use our logic and we know. So the Cause is always answered when there is a human involved. Human is the one who applies the knowledge. So you will not ask your mom who made her and asking that also will not make sense. IT is because the Effect has been answered. IT is only when we lack the resource of knowledge applicator, then we have those regress type questions.
There is no proof that something comes out of nothing. The proof is zero. NOTHING.
 
And it is really amazing that Atheists talk about people doing good just because it is good. You know why?. Because they are the ones who believe in evolution, the ideology which tries to understand values like compassion, self sacrifice, honesty through the RETURN BENEFIT system. So people doing good for the sake of it being good is a religious teaching. 
Good values like donating blood, giving up your seat to the elderly have no return benefit. 

"I am good to you because you are good to me" VS "pray for those who persecute you". You decide.