Interested in Language
May I use the idiom murder will out in a situation where there is no murder?
"Donīt lie to me because murder will out."
Thanks a lot.
Not a Teacher
It's not natural. The only phrase in which we usually use "will out" is "The truth will out", meaning that no matter what people do or say, eventually the truth will come out, one way or another.
If there has been no murder, I'm not sure what you're trying to say with "murder will out".
Remember - if you don't use correct capitalisation, punctuation and spacing, anything you write will be incorrect.