It is evidence of the value of church discipline. The man had repented. He had left his sinful relationship. And now Paul instructs the church to forgive, support, and confirm their love toward him. When a person repents of former sin and desires to do what is right is no time for holding grudges and giving the cold shoulder, no matter how loathsome the former sin.
Genuine repentance calls for genuine forgiveness and restoration.
The church can help people resolve tangled marriage relationships by avoiding carnal speculation and rumor. Judge not, that ye be not judged. The fallen mind has a fascination with evil reports. It also has a tendency to assume evil and to put things together in the worst construction. Knowing these tendencies and the deceitfulness of the heart, Christians should avoid talk about the sins and problems of others.