John 1:32

1:32 Then John testified, “I saw the Spirit descending like a dove from heaven, and it remained on him.

John 2:25

2:25 He did not need anyone to testify about man, for he knew what was in man.

3:11 I tell you the solemn truth, we speak about what we know and testify about what we have seen, but you people do not accept our testimony.

3:28 You yourselves can testify that I said, ‘I am not the Christ,’ but rather, ‘I have been sent before him.’

5:37 And the Father who sent me has himself testified about me. You people have never heard his voice nor seen his form at any time,

5:39 You study the scriptures thoroughly because you think in them you possess eternal life, and it is these same scriptures that testify about me,

7:7 The world cannot hate you, but it hates me, because I am testifying about it that its deeds are evil.

12:17 So the crowd who had been with him when he called Lazarus out of the tomb and raised him from the dead were continuing to testify about it.

13:21 When he had said these things, Jesus was greatly distressed in spirit, and testified, “I tell you the solemn truth, one of you will betray me.”

19:35 And the person who saw it has testified (and his testimony is true, and he knows that he is telling the truth), so that you also may believe.

A Final Note

21:24 This is the disciple who testifies about these things and has written these things, and we know that his testimony is true.