God forbid

bow down before the porcelain god

Synonym of worship the porcelain god (“to vomit into a toilet bowl”).

call someone everything but a child of God

To call someone many abusive names.

God forfend

Don't let it be.

God is in the detail

Expresses the idea that whatever one does should be done thoroughly; i.e. details are important.

god that failed

A notable let-down or flop; a concept, product, or person that has failed to live up to very high expectations.

good God

Expression of surprise, outrage, or horror.

hand to God

Used when admitting something which might not be believed.

have more money than God

To be extremely or excessively rich