Scientists do not know what happened before the big bang. And that includes Hawking. He has an idea as to what could have been before the big bang, but it is just that - an idea. Therefore, it is entirely possible (unlikely in my opinion, but possible nonetheless) that god(s) created the big bang.
"God demonstrates His own love toward us, in that while we were still sinners, Christ died for us" (Romans 5:8).
"Always be ready to give a defense to everyone who asks you a reason for the hope that is in you" (1 Peter 3:15).
"Always be ready to give a defense to everyone who asks you a reason for the hope that is in you" (1 Peter 3:15).