“For with what judgment ye judge, ye shall be judged: and with what measure ye mete, it shall be measured to you again.”
Matthew 7:2 — Greek Interlinear
Church Fathers on Matthew 7:2
Since when these temporal things are provided beforehand against the future, it is uncertain with what purpose it is done, as it may be with a single or double mind, He opportunely subjoins, 'Judge not.'
Otherwise; He has drawn out thus far the consequences of his injunctions of almsgiving; He now takes up those respecting prayer. And this doctrine is in a sort of continuation of that of the prayer; as though it should run, 'Forgive us our debts,' and then should follow, 'Judge not, that ye be not judged.'
But if He forbids us to judge, how then does Paul judge the Corinthian who had committed uncleanness? Or Peter convict Ananias and Sapphira of falsehood?