And lest, when I come again, my God will humble me among you, and that I shall mourn over many who have sinned already, and have not repented of the uncleanness and fornication and licentiousness which they have committed.
All Commentaries on 2 Corinthians 12:21 Go To 2 Corinthians 12
Ambrosiaster
AD 400
Paul is saying that some have repented but others have not. This contradicts Novatian, who claims that fornicators cannot repent or be received back into communion. Paul is affirming that they have indeed repented, and because of this they have been received back into the peace of the church. Commentary on Paul’s Epistles.