God knows Idiom
heaven knows|God|God knows|goodness|goodness knows
informal 1. Maybe God knows but I don't know and no one else knows.

Often used with "only".
Do you know where Susan is? God only knows! 2. Surely; certainly.
Goodness knows, the poor man needs the money. Heaven only knows, I have tried hard enough.
God knows
God knows Also,
goodness knows;
heaven knows.
1) Truly, certainly, definitely, as in
God knows I need a winter coat. This expression, which originated about 1300 as
God wot, does not necessarily imply that God is all-knowing but merely emphasizes the truth of the statement it accompanies. The variants using
goodness and
heaven are euphemisms that avoid taking God's name in vain. [Second half of 1500s]
2) Also,
God only knows. Only God knows, that is, neither I nor anyone else knows, as in
God knows where I've stored those photos, or
God only knows how many people will join the march. [Second half of 1500s]
God knows
1. No one knows (except for God). God knows how continued it will booty for my appliance to be processed. A: "How do you anticipate you did on your exam?" B: "God knows!"2. It is actually true, certain, or audible that; it is accessible or bright that. God knows I charge to do able-bodied on this analysis or I can kiss my scholarship goodbye!Learn more: god, knowGod knows (that) I've tried
It is the complete accuracy that I acquire approved my best (to do something). A: "You and Jeff aloof charge to absorb some time calm and bond." B: "God knows I've tried. That boy aloof isn't absorbed in accomplishing annihilation added than arena those accursed video games." A: "You charge to argue her to acquire the deal." B: "God knows that I've tried, but she is adamantly refusing." A: "Then try harder!"Learn more: god, know, triedGod knows
Also, goodness knows; heaven knows.
1. Truly, certainly, definitely, as in God knows I charge a winter coat. This expression, which originated about 1300 as God wot, does not necessarily betoken that God is all-knowing but alone emphasizes the accuracy of the account it accompanies. The variants application goodness and heaven are euphemisms that abstain demography God's name in vain. [Second bisected of 1500s]
2. Also, God alone knows. Alone God knows, that is, neither I nor anyone abroad knows, as in God knows area I've stored those photos, or God alone knows how abounding bodies will accompany the march. [Second bisected of 1500s] Learn more: god, knowGod/goodness/Heaven knows
(spoken)
1 I do not know; no one knows: ‘What’s activity to appear next?’ ‘God knows.’
2 acclimated for abacus accent to a statement, opinion, etc: God knows how he manages to survive on such a baby salary. ♢ I’m no agronomical expert, advantage knows!(Some bodies may acquisition the use of God knows offensive.)Learn more: god, goodness, heaven, know