Believers, non-believers, it doesn’t matter. When you imagine the Voice of God, who does he sound like?
Morgan Freeman.
Wayne Entress
But for those who don’t know Wayne, I’ll go with Johnny Cash
James Earl Jones, or if he’s not available, Morgan Freeman.
George Burns
Bob Sheppard (recently deceased Yankee Stadium Announcer).
Samuel L. Jackson
“…and you will know my name is the LORD when I lay my vengence upon thee.”
Ding! Winnah
Stephen Fry.
A generic, deep, old man type voice. Kinda like the typical Santa voice when he says “Ho ho ho.” And not when whiny old Father Christmas says it, either.
God has a voice? Oh yeah, I guess…
JC has a normal pleasant voice. The other Persons don’t speak physically (voices from burning bushes aren’t caused by said bushes growing a mouth). When dubbed into Spanish, burning bushes should have the voice of Constantino Romero in his everyday speaking voice (even deeper than his “deep professional voice”, that guy takes Basso Profundo and brings it a few kilometers closer to the Earth’s center).
The Jolly Green Giant is your VOG? That’s funny. 
As king of the jews, He’d probably sound like Woody Allen.
Like the Wizard of Oz voice. The “I AM OZ, THE GREAT AND TERRIBLE” voice.
Morgan Freeman.
Or perhaps James Mason…
God has the voice of Kenneth Williams
In the voice of Carl Sagan, “The many touungues of God!”
If I had to pick from the list I’d want Alan Rickman as my god’s voice. But no George Burns? No irritated deity commanding Arthur, King of the Britons to get the grrrrrail? No Alanis Morrissette?
Like water or the air we breathe, the voice of God is totally familiar and virtually indescribable. Profound and yet intimately recognizable once we listen, capable of extreme gentleness and awesome power. His voice sounds like Himself, not like anything He created.
Just sayin’.
Glowy Face God from Time Bandits.
“Bring back…the map! Return…what you have stolen from me!”