'Testify' in the Bible
He came as a witness to testify about the light, so that everyone might believe through him.
He himself was not the light, but he came to testify about the light.
He did not need anyone to testify about man, for he knew what was in man.
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.
You yourselves can testify that I said, 'I am not the Christ,' but rather, 'I have been sent before him.'
"But I have a testimony greater than that from John. For the deeds that the Father has assigned me to complete -- the deeds I am now doing -- testify about me that the Father has sent me.
You study the scriptures thoroughly because you think in them you possess eternal life, and it is these same scriptures that testify about me,
So the Pharisees objected, "You testify about yourself; your testimony is not true!"
Jesus answered, "Even if I testify about myself, my testimony is true, because I know where I came from and where I am going. But you people do not know where I came from or where I am going.
I testify about myself and the Father who sent me testifies about me."
Jesus replied, "I told you and you do not believe. The deeds I do in my Father's name testify about me.
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.
When the Advocate comes, whom I will send you from the Father -- the Spirit of truth who goes out from the Father -- he will testify about me,
and you also will testify, because you have been with me from the beginning.
Then Pilate said, "So you are a king!" Jesus replied, "You say that I am a king. For this reason I was born, and for this reason I came into the world -- to testify to the truth. Everyone who belongs to the truth listens to my voice."