John 2:24-25
John 2:24-25 AMP
But Jesus, for His part, did not entrust Himself to them, because He knew all people [and understood the superficiality and fickleness of human nature], and 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]