First off I need to acknowledge that what Tom said earlier describing God’s existence in terms of particle physics, is good, because a language that open-mindedly describes G-d, both glorifies G-d and helps people find their identity. All conscious beings find a purpose and identify with it. This life is the journey. It is unsafe to live our lives based on knowledge that is blind to what we do not know, but we do. We will all die.
The only certainties in life are death and taxes.
It takes faith to receive power. It takes faith to give power. Because G-d is all knowing and all powerful, He does not need us to be perfect. Furthermore, in the New Testament, love can disconnected from whorship and anger can disconnected from loss, because of forgiveness. And in Heaven, all things will be made right. But in this life there are reasons why one might still want to live a moralistic religious life to avoid loss, and why one might want to accept love/forgiveness in order to have a solid identity. G-d loves us and cares about us.
What about someone like me who has no faith? It's great to know that She loves all of us, but what does that love actually mean for someone who is unable to have the required belief? I know a woman who lost her cat. The stupid priest told her not to worry, the cat will come back. It didn't and my friend lost all her belief because of that priest. Another friend used to be a regular church goer until her husband died. She can't understand why a loving God would take him away from her and she has now lost all her belief.
Seems to me the church has a long way to go in helping people understand what Christianity is all about. Just saying that God loves all of us isn't good enough; it certainly wasn't for my two friends, and presumably many others. All the denominations have a lot of work to do with the faithful, a lot of teaching to do during sermons, but so far it seems they are missing out and losing members. If God did exist, I would imagine that She is tearing her hair out at some human activities. I suspect the problem is that when you are trying to convince people that a 'concept' is worth the time to worship, it is difficult to describe this concept in a way that people will understand and respond to in a positive way.
Remember that us humans invented 'God', mostly as a control mechanism (still used that way in the Catholic Chuch - I should know!) and isn't in any factual sense 'real'.