And some indeed reprove, being judged:

“Since, then, there is much difference between those who have sacrificed, what a want of mercy it is, and how bitter is the hardship, to associate those who have received certificates, with those who have sacrificed, when he by whom the certificate has been received may say, "I had previously read, and had been made aware by the discourse of the bishop, that we must not sacrifice to idols, that the servant of God ought not to worship images; and therefore, in order that I might not do this which was net lawful, when the opportunity of receiving a certificate was offered, which itself also I should not have received, unless the opportunity had been put before me, I either went or charged some other person going to the magistrate, to say that I am a Christian, that I am not allowed to sacrifice, that I cannot come to the devil's altars, and that I pay a price for this purpose, that I may not do what is not lawful for me to do." Now, however, even he who is stained with having received a certificate,-after he has learnt from our admonitions that he ought not even to have done this, and that although his hand is pure, and no contact of deadly food has polluted his lips, yet his conscience is nevertheless polluted, weeps when he hears us, and laments, and is now admonished of the thing wherein he has sinned, and having been deceived, not so much by guilt as by error, bears witness that for another time he is instructed and prepared.”

“And of some have compassion,.... That is, of such who have gone astray, being drawn aside; who are simple and ignorant, and out of the way; who sin through infirmity, and the force of temptation; and who are tractable and open to conviction, and whose mistakes are in lesser matters of religion; as also such who are convicted and wounded in their consciences for their sins and mistakes: and to these compassion is to be shown, by praying with them, and for them, with ardency and affection; instructing them in meekness; giving friendly and brotherly reproofs to them; expressing on all occasions a tender concern for their good; doing them all the good that can be done, both for their souls and bodies: and good reason there is why compassion should be shown them, because God is a God of compassion; Christ is a merciful high priest; a contrary spirit is grieving to the Holy Ghost; saints should consider what they themselves were, and what they now are, and that compassion has been shown to them, and they may want it again. The Alexandrian copy, and some others, and the Vulgate Latin and Ethiopic versions, read, "reprove", Making a difference; between one and another; using some more tenderly, others more severely, as the nature and circumstances of their case appear to be. The Syriac version renders the whole, "when they repent, have compassion on them".”

“And of some have compassion, making a difference - The general meaning of this exhortation is supposed to be, "Ye are not to deal alike with all those who have been seduced by false teachers; ye are to make a difference between those who have been led away by weakness and imprudence, and those who, in the pride and arrogance of their hearts, and their unwillingness to submit to wholesome discipline, have separated themselves from the Church, and become its inveterate enemies." Instead of Και οὑς μεν ελεειτε διακρινομενοι, and of some have compassion, making a difference, many MSS., versions, and fathers have και οὑς μεν ελεγχετε διακρινομενους, and some rebuke, after having judged them; or, rebuke those that differ; or, some that are wavering convince; or whatever else the reader pleases: for this and the following verse are all confusion, both in the MSS. and versions; and it is extremely difficult to know what was the original text. Our own is as likely as any.”

“And some indeed reprove, being judged. He gives them another instruction to practise charity in endeavouring to convert their neighbour, where they will meet with three sorts of persons. 1. With persons obstinate in their errors and sins, these may be said to be already judged and condemned, they are to be sharply reprehended, reproved, and, if possible, convinced of their errors. 2. As to others, you must endeavour to save them, by snatching them as it were out of the fire, from the ruin they stand in great danger of. 3. You must have compassion on others in great fear, when you see them, through ignorance or frailty, in danger of being drawn into the snares of these heretics; with these you must deal more gently and mildly, with a charitable compassion, hating always, and teaching others to hate the carnal coat, which is defiled, their sensual and corrupt manners, that defile both the soul and body. (Witham)”

“None but those who "keep themselves" are likely to "save" others. have compassion--So one oldest manuscript reads. But two oldest manuscripts, Vulgate, &c., read, "convict"; "reprove to their conviction"; "confute, so as to convince." making a difference--The oldest manuscripts and versions read the accusative for the nominative, "when separating themselves" [WAHL], referring to Jde 1:19; or "when contending with you," as the Greek is translated, Jde 1:9.”