truth will out

the truth will out

The facts of the situation will always and inevitably be known or discovered. The government is trying to hide the use of torture on political prisoners from the public eye, but the truth will out one way or another. It's just not worth circumventing the law to save a little bit of money on your taxes, because the truth will out in the end.
See also: out, truth, will
Farlex Dictionary of Idioms.

truth will out

Prov. The truth will always be discovered. (Can be used to remark that someone who had been concealing the truth is now revealing it, as in the second example.) The embezzler may think that someone else will be blamed for his crime, but the truth will out. Ellen: Remember last week, when I told you I bought some shoes? Fred: Yes.... Ellen: Well, before you look at the bill from the shoe store, l ought to tell you that I bought ten pairs. Fred: Aha. The truth will out.
See also: out, truth, will
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.

truth will out

The facts will be known, as in She thought she could get away with it, but truth will out, and I'm sure she'll get caught . Shakespeare used this idiom in The Merchant of Venice (2:2): "But in the end truth will out." Also see murder will out.
See also: out, truth, will
The American Heritage® Dictionary of Idioms by Christine Ammer.

(the) ˌtruth will ˈout

(saying) the truth about something cannot be hidden for ever
See also: out, truth, will
Farlex Partner Idioms Dictionary

truth will out

The facts will emerge sooner or later. The idea is ancient. Shakespeare expressed it as “Truth will come to light” (The Merchant of Venice, 2.2), and the modern cliché was voiced by Roger North in 1740: “Early or late, Truth will out.”
See also: out, truth, will
The Dictionary of Clichés by Christine Ammer
See also:
  • the truth will get out
  • the truth will out
  • have (one's) hide
  • have hide
  • hide
  • hide the sausage
  • sausage
  • tan (one's) hide
  • tan hide
  • tan someone's hide