'Witness Against You' in the Bible

"So that you bear witness against yourselves that you are descendants of those who murdered the Prophets.

And the high priest arose, and said unto him, Answer you nothing? what is it which these witness against you?

And after a little time those who were near came and said to Peter, Truly you are one of them; because your talk is witness against you.

Then said Pilate unto him, Hear you not how many things they witness against you?