'Testify' in the Bible

He came as a witness to testify about the light, so that all might believe because of him.

John was not the light, but he came to testify about the light.

Truly, I tell you emphatically, we know what we're talking about, and we testify about what we've seen. Yet you people do not accept our testimony.

"If I testify on my own behalf, my testimony is not trustworthy.

"But I have a greater testimony than John's, because the actions that the Father has given me to complete the very actions that I am doing testify on my behalf that the Father has sent me.

You examine the Scriptures carefully because you suppose that in them you have eternal life. Yet they testify about me.

The world cannot hate you, but it hates me because I testify against it that its actions are evil.

Jesus answered them, "I have told you, but you don't believe it. The actions that I do in my Father's name testify on my behalf,

So the crowd that had been with him when he called Lazarus out of the tomb and raised him from the dead continued to testify to what they had seen.

"When the Helper comes, whom I will send to you from the Father the Spirit of Truth, who comes from the Father he will testify on my behalf.

You will testify also, because you have been with me from the beginning.

Pilate asked him, "So you are a king?" Jesus answered, "You say that I am a king. I was born for this, and I came into the world for this: to testify to the truth. Everyone who is committed to the truth listens to my voice."