Question

who thanks
the god?​

Answer 1

plz type your question properly.

Answer 2

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 spoken to someone else, suggesting that they are thankful to God for their good fortune.
Some Examples:

After narrowly avoiding a car while riding his bike, James looked up at the sky and said, "Thank you God!"
"Thank god!", responded Jennifer after hearing that James was unharmed.

I'm not certain but it seems like the phrases expand to:

Thank God > Let us thank God

Thanks, God > Thank you, God