John 1:7

1:7 He came as a witness to testify about the light, so that everyone might believe through him.

John 11:49

11:49 Then one of them, Caiaphas, who was high priest that year, said, “You know nothing at all!

John 13:11

13:11 (For Jesus knew the one who was going to betray him. For this reason he said, “Not every one of you is clean.”)