McGwire knew what was coming, and he knew that he would perjure himself if he lied.
From the theatlantic.com
For example, the English verb to perjure is reflexive, since one can only perjure oneself.
From the en.wikipedia.org
At which point, I would either have to perjure myself or tell the truth and make things worse for him.
From the stltoday.com
Did he perjure himself during the grand jury investigation?
From the usatoday.com
Is it possible that the two of them had intimate contact, yet Clinton still did not perjure himself?
From the time.com
To perjure oneself, according to the law, you have to make a statement that is contrary to what you believe to be true.
From the time.com
Most people won't perjure themselves for a vendetta.
From the forbes.com
Along the way, Tidey must decide whether to perjure himself to protect fellow policemen who beat up some young drunks at a bar.
From the npr.org
However, on 7 May he fell into a trap laid for him by Richard Rich, who was to perjure himself to obtain Thomas More's conviction.
From the en.wikipedia.org
More examples
Knowingly tell an untruth in a legal court and render oneself guilty of perjury
Perjury, also known as forswearing, is the willful act of swearing a false oath or affirmation to tell the truth, whether spoken or in writing, concerning matters material to a judicial proceeding. ...
To knowingly and willfully make a false statement of witness while in court
(perjured) testified falsely under oath; falsified; untrue