If the rate of expansion one second after the big bang had been smaller by even one part in a hundred thousand million million, the universe would have recollapsed before it ever reached its present size.

Ref: A Brief History of Time

The odds against a universe like ours emerging out of something like the Big Bang are enormous. I think there are clearly religious implications.

Ref: J Boslough. Stephen Hawkings universe. William Morrow, New York, 1985. Page 121.

His opinions about theism seem to have changed over time and here is further reading: Stephen Hawking has a change of heart: God did not create Universe?