Looking on the internet deeply has found these results:

Thanks to god is the most popular phrase on the web.

Thanks God 1381,000 results on the web	Thanks to god 134,800,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
I suppose if you wanted to express your gratitude directly to the deity you might appropriately say “Thanks, God, for helping our team win the big game. Oct 27, 2011 ... You are praying or directly conversing with God, then you would say “Thanks, God”. “Thanks, God” should actually mean “Thank You, God” as if ... Jun 3, 2015 ... "Thanks" is an abbreviation of "thank you", so "Thanks, God" would be saying thank you as if speaking to God itself. "Thank God" is a phrase ... Mar 1, 2012 ... Thanks God for His grace and mercy on […]. The person is expressing his/her thankfulness to God. Thank God seems better, but it sounds a bit ...	I only give thanks to God that there was no money on the premises when the villains came a calling. Thanks to God we can pay! It's OK, thanks to God. I only managed to sleep five minutes, but thanks to God... I dreamt that God was giving me two sons. I have all again mine thanks to God. "I'm an atheist, thanks to God." I give thanks to God for your success and safe return. Yes but thanks to God he now wears a cap.

Thanks God

1381,000 results on the web

Thanks to god

134,800,000 results on the web

More popular!

I suppose if you wanted to express your gratitude directly to the deity you might appropriately say “Thanks, God, for helping our team win the big game.
Oct 27, 2011 ... You are praying or directly conversing with God, then you would say “Thanks, God”. “Thanks, God” should actually mean “Thank You, God” as if ...
Jun 3, 2015 ... "Thanks" is an abbreviation of "thank you", so "Thanks, God" would be saying thank you as if speaking to God itself. "Thank God" is a phrase ...
Mar 1, 2012 ... Thanks God for His grace and mercy on […]. The person is expressing his/her thankfulness to God. Thank God seems better, but it sounds a bit ...

I only give thanks to God that there was no money on the premises when the villains came a calling.
Thanks to God we can pay!
It's OK, thanks to God.
I only managed to sleep five minutes, but thanks to God... I dreamt that God was giving me two sons.
I have all again mine thanks to God.
"I'm an atheist, thanks to God."
I give thanks to God for your success and safe return.
Yes but thanks to God he now wears a cap.