A.T. Robertson Commentary Luke 22:71

"And they said, What further need have we of witness? for we ourselves have heard from his own mouth." — Luke 22:71 (ASV)

For we ourselves have heard (αυτο γαρ ηκουσαμεν). They were right if Jesus is not what he claimed to be. They were eternally wrong for he is the Christ, the Son of man, the Son of God. They made their choice and must face Christ as Judge.