To deny the existence of a transcendental creator is just as much an act of faith as to affirm it.
Stephen Hawking believes that God wasn't necessary to the creation of the universe. That's his prerogative, of course; he can believe what he wants. The only trouble we have with it is that, as great of a scientist as he may be, he tends to speak philosophically under the guise of science. That is a significant and telling mistake on his part.
He basically asserts that, as all things necessary for life were present at the dawn of time, a creator was not necessary for life and the expanding universe to occur. It all was bound to happen, or was the product of stupid chance.
The trouble is, that's not science: it's presumption. Imagine entering a room and seeing a pile of boards, screws, brackets, nails, and handles; screwdrivers, saws, hammers, and a measuring tape piled also to the side. You see everything, then turn around and leave.
Upon returning hours later, it's all gone as you remembered it. But a desk stands in the center of room. Did it simply materialize, or was it made with intent?
The simple fact is that nothing happens of its own volition. Such is a very basic philosophic axiom. If all the components of life, the universe, and everything were present before the big bang, it's because they were put there. It should then be no surprise that whatever big ball of matter (or whatever else might have been there) existed before time held all the necessary things which our universe and our lives require. Why wouldn't it? Life would be impossible without them.
The best Mr. Hawking can assert is that the needed materials were just there. And that's all science can say about the, hee, hee, matter. Anything beyond that is his own wishful thinking, his own fairy story. Indeed, his own non-scientific fairy story, for his position is not scientific but philosophical and speculative. Even holding out that he may be right, he must prove his allegations against God and man through purely rational rather than by infertile scientific means. Maintaining that's it's all science restricts, not expands, his point. It shows delusion, not intellect.