I believe in a creator of all things and also believe that God created us with natural instincts of morality. So I don't justify that one must be religious to be moral. Morality is a natural gift from God, and to act immoral or moral is a intentional act.

The arguments against religion may be true but arguments about God the creator is tough to argue. Take the simplest of things such as vomiting - you suppose a spontaneous act would have created mammals such as humans (as complicated as our anatomy is) and then spontaneously we were made with the ability to vomit when our bodies reject a harmful substance? There are hundreds of other examples.