How is “bear witness” used?

In The Grand Budapest Hotel (2014), one line is: “I'd rather not bear witness to such blasphemy.”

Which movie is “bear witness” from?

The clip at the top of this page is from The Grand Budapest Hotel (2014).

I'd rather not bear witness to such blasphemy.

6 作品で登場 · 1 本目

to provide evidence of the truth of sth; to be present and see something happen, especially a solemn, public, or unpleasant event

7 本の映画に登場

オックスフォード映画の 67%
to provide evidence of the truth of sth
...bear witness to the civilization that flourished and then died here.
編集映画の 33%
to be present and see something happen, especially a solemn, public, or unpleasant event
I'd rather not bear witness to such blasphemy.

定義：Oxford Advanced Learner's Dictionary 第 9 版