'Bear Witness' in the Bible

He came for a witness, to bear witness of the light, that all might believe through him.

He was not the light, but came to bear witness of the light.

and he had no need for anyone to bear witness of man, for he knew what was in man.

"If I bear witness of myself, my testimony is not true.

But the testimony which I have is greater than that of John; for the works which the Father has given me to finish, these very works which I am doing, bear witness of me, that the Father has sent me.

Jesus answered, "Even if I bear witness of myself, my testimony is true, for I know where I came from and where I am going; but you do not know where I come from and where I am going.

Jesus answered them, "I told you, and you do not believe. The works that I do in my Father's name, they bear witness of me;

And you also will bear witness, because you have been with me from the beginning.

Jesus answered him, "If I have spoken wrongly, bear witness to the wrong; but if I have spoken rightly, why do you strike me?"

Pilate said to him, "You are a king then?" Jesus answered, "You say what I ama king. For this I was born, and for this I have come into the world, to bear witness to the truth. Everyone who is of the truth hears my voice."