John 2:25

25He did not need any testimony about mankind, for he knew what was in each person.

25and because He did not need anyone to testify about mankind, for He Himself knew what was in mankind.

25and because He did not need anyone to testify concerning man, for He Himself knew what was in man.

25and He did not need anyone to testify concerning man [and human nature], for He Himself knew what was in man [in their hearts—in the very core of their being]. [1 Sam 16:7]

25He did not need any testimony about man, for He knew what was in a man.

25He didn’t need anyone to tell him what people are like. He already knew why people do what they do.