I Corinthians 4:5-8
 Therefore judge nothing before the time, until the Lord come,
who both will bring to light the hidden things of darkness, and will
make manifest the counsels of the hearts: and then shall every man have
praise of God. And these things, brethren, I have in a
figure transferred to myself and to Apollos for your sakes; that ye
might learn in us not to think of men above that which is written, that
no one of you be puffed up for one against another. For
who maketh thee to differ from another? and what hast thou that thou
didst not receive? now if thou didst receive it, why dost thou glory, as
if thou hadst not received it? Now ye are full, now ye
are rich, ye have reigned as kings without us: and I would to God ye did
reign, that we also might reign with you.
St. John Chrysostom in his Homily XI on I Corinthians IV said:
"Together with all other ills, I do not know how there was added to man's nature the disease of restless prying and unseasonable curiosity. This Christ Himself chastised, saying, 'Judge not, that you be not judged'…Though we are ourselves full of ten thousand evils, and bearing the 'beams' in our own eyes, we become exact inquisitors of the offences of our neighbor…Judge nothing before the time…What then? Is it not right that our teachers should do this? It is right in the case of open and confessed sins and with fitting opportunity, but even then with pain and inward vexation…For these things He alone knows how to judge with accuracy, He who is to judge our secret doings, which of these is worthy of greater and which of less punishment and honor…For if in my own errors, he says, I know nothing clearly, how can I be worthy to pass sentence on other men? And how shall I who do not know my own case with accuracy, be able to judge the state of others?"
St. Jerome in his Letter 11 wrote:
"…the apostle says: 'Judge nothing before the time.' (I Cor 4:5) For 'who are you that judgest another man's servant? To his own master he stands or falls.' (Rom 14:4) And 'let him that stands take heed lest he fall.' (I Cor 10:12) 'Bear ye one another's burdens.' (Gal.6:2) Dear sisters, man's envy judges in one way, Christ in another; and the whisper of a corner is not the same as the sentence of His tribunal. Many ways seem right to men which are afterwards found to be wrong. (Prov.14:12) And a treasure is often stowed in earthen vessels. (II Cor.4:7) Peter thrice denied the Lord, yet his bitter tears restored him to his place. 'To whom much is forgiven, the same loves much.' (Luke 7:47) No word is said of the flock as a whole, yet the angels joy in heaven over the safety of one sick ewe. (Luke 15:7,10)"