John Chrysostom

(Hom. lii. 2) As if to say: In saying, I judge no man, I meant that I did not anticipate judgment. If I judged justly, I should condemn you, but now is not the time for judging. He alludes however to the future judgment, in what follows; For I am not alone, but I and the Father that sent Me; which means that He will not condemn them alone, but He and the Father together. This is intended too to quiet suspicion, as men did not think the Son worthy to be believed, unless He had the testimony of the Father also.