“Then the high priest
Tore his clothes.
‘He has blasphemed!
Why do we still
You have now heard
τότε ὁ ἀρχιερεὺς διέρρηξεν τὰ ἱμάτια αὐτοῦ λέγων Ἐβλασφήμησεν· τί ἔτι χρείαν ἔχομεν μαρτύρων; ἴδε νῦν ἠκούσατε τὴν βλασφημίαν·
This is almost word for word in Mark, chapter 14:63. In Luke, chapter 22:71, there is something similar, but there is nothing like this in John, chapter 18. Matthew said that the high priest tore his clothes
(τότε ὁ ἀρχιερεὺς διέρρηξεν τὰ ἱμάτια αὐτοῦ), a sign of mourning. Caiaphas said that Jesus had blasphemed (λέγων Ἐβλασφήμησεν) by calling himself the Messiah Christ. The high priest asked why did they still need any witnesses (τί ἔτι χρείαν ἔχομεν μαρτύρων)? The had all heard his blasphemy (ἴδε νῦν ἠκούσατε τὴν βλασφημίαν). Technically, it might not have been a blasphemy, since someone had to utter the divine name or profane sacred things, but it was close enough.