'Testify Concerning' in the Bible

Thou art not after many to evil, nor dost thou testify concerning a strife, to turn aside after many to cause others to turn aside;

He came to be a witness, so that he might testify concerning that Light, so that all people would believe [in Jesus] through him [i.e., through his testimony. See Acts 19:4].

He himself was not that Light, but came [only] to testify concerning that Light.

John doth testify concerning him, and hath cried, saying, 'This was he of whom I said, He who after me is coming, hath come before me, for he was before me;'

and because he had no need that any should testify concerning man, for he himself was knowing what was in man.

'If I testify concerning myself, my testimony is not true;

another there is who is testifying concerning me, and I have known that the testimony that he doth testify concerning me is true;

'But I have the testimony greater than John's, for the works that the Father gave me, that I might finish them, the works themselves that I do, they testify concerning me, that the Father hath sent me.

You search through the Scriptures [i.e., the Old Testament], because you think that you will [learn how to] have never ending life by [reading] them. And these Scriptures are what testify concerning me.

the world is not able to hate you, but me it doth hate, because I testify concerning it that its works are evil.

So the Pharisees said to him, "You testify concerning yourself! Your testimony is not true."

Jesus answered and said to them, "Even if I testify concerning myself, my testimony is true, because I know where I have come from and where I am going. But you do not know where I have come from or where I am going.

I am one that testify concerning myself, and the Father who sent me, testifies of me.

Jesus answered them, 'I told you, and ye do not believe; the works that I do in the name of my Father, these testify concerning me;

But when the Comforter is come, whom I will send to you from the Father, even the Spirit of truth, who proceedeth from the Father, he will testify concerning me.

Jesus answered him, 'If I spake ill, testify concerning the ill; and if well, why me dost thou smite?'