John Chrysostom

Then because this saying also seemed to be that of one extolling himself greatly, this too he corrects, saying, "Yet am I not hereby justified." What then? Ought we not to judge ourselves and our own misdeeds? Yes surely: there is great need to do this when we sin. But Paul said not this, "For I know nothing," saith he, "against myself." What misdeed then was he to judge, when he "knew nothing against himself?" Yet, saith he, "he was not justified." We then who have our conscience filled with ten thousand wounds, and are conscious to ourselves of nothing good, but quite the contrary; what can we say?

And how could it be, if he knew nothing against himself that he was not justified? Because it was possible for him to have committed certain sins, not however, knowing that they were sins. From this make thine estimate how great shall be the strictness of the future judgment. It is not, you see, as considering himself unblameable that he saith it is so unmeet for him to be judged by them, but to stop the mouths of those who were doing so unreasonably.

For these same words, viz. "I know nothing against myself, yet am I not hereby justified," and this, "He that judgeth me is the Lord, who will both bring to light the hidden things of darkness, and make manifest the counsels of the hearts," glance not lightly both upon that person, and upon such as act in concert with him and despise the saints. "For what," saith he, "if any outwardly appear to be virtuous and admirable persons? He, the Judge, is not a discerner of externals only, but also brings to light all secrets."

On two accounts you see, or rather on three, correct judgement belongs not to us. One, because, though we be conscious to ourselves of nothing, still we need one to reprove our sins with strictness. Another, because the most part of the things which are done escape us and are concealed. And for a third besides these, because many things which are done by others seem to us indeed fair, but they come not of a right mind. Why say ye then, that no sin hath been committed by this or that person? That such an one is better than such another? Seeing that this we are not to pronounce, not even concerning him who knows nothing against himself. For He who discerns secrets, He it is who with certainty judges. Behold, for example; I for my part know nothing against myself: yet neither so am I justified, that is, I am not quit of accounts to be given, nor of charges to be answered. For he doth not say this, "I rank not among the righteous;" but "I am not pure from sin."