'Concerning' in the Bible

and because He did not need anyone to testify concerning man, for He Himself knew what was in man.

There was much grumbling among the crowds concerning Him; some were saying, “He is a good man”; others were saying, “No, on the contrary, He leads the people astray.”

I have many things to speak and to judge concerning you, but He who sent Me is true; and the things which I heard from Him, these I speak to the world.”

and many of the Jews had come to Martha and Mary, to console them concerning their brother.

And He, when He comes, will convict the world concerning sin and righteousness and judgment;

concerning sin, because they do not believe in Me;

and concerning righteousness, because I go to the Father and you no longer see Me;

and concerning judgment, because the ruler of this world has been judged.