John 2:22-25

When therefore he was raised from the dead, his disciples remembered that he spake this; and they believed the scripture, and the word which Jesus had said. Now when he was in Jerusalem at the passover, during the feast, many believed on his name, beholding his signs which he did. But Jesus did not trust himself unto them, for that he knew all men, and because he needed not that any one should bear witness concerning man; for he himself knew what was in man.