'Witnesses' in the Bible

But if he do not hear thee, take with thee one or two besides, that every matter may stand upon the word of two witnesses or of three.

And they found none, though many false witnesses came forward. But at the last two false witnesses came forward

Then the high priest rent his clothes, saying, He has blasphemed: what need have we any more of witnesses? behold, now ye have heard the blasphemy.