What does 2 Corinthians 8:22 mean?
Earlier verses mentioned two members of a delegation travelling to Corinth to collect funds for the suffering Christians in Jerusalem. Now Paul mentions one more. This man is also unnamed, though Paul fully endorses his character. He calls this third man "our brother" and says that he has often been tested, meaning that the man has proved his trustworthiness over time. He is a man who takes important things very seriously and is now even more earnest about this issue of collecting funds for Jerusalem. Paul adds that the man has great confidence in the Corinthians.It is likely that this third man is also the representative of a church or group of churches, added to the team to ensure greater transparency and integrity in handling large amount of donated funds. From Paul's language, the Corinthians may already know and trust both the unnamed men who will probably be with them by the time they read this letter.
Second Corinthians 8:16–24 describes the three men who will be coming to Corinth. After delivering this letter, they will help collect the Corinthian's contribution to the needs of suffering Christians in Jerusalem. The Corinthians know Titus, who recently returned from Corinth, and that he cares for the Corinthians as deeply as Paul himself. Titus will be accompanied by two delegates from other churches to prove that everything is done honestly and with transparency. These men will then report back to their churches how the Corinthians participated in the collection.
The Corinthians had previously agreed to contribute to a collection. This was for suffering Christians in Jerusalem. Paul raises the issue with them, pointing to the example of the poverty-stricken Macedonian churches who had given beyond their means of their own free will. Paul urges the Corinthians to follow through on their commitment by their own choice. Titus and two representatives of other churches are coming to Corinth to oversee the collection so it is done with integrity. Paul urges the Corinthians to prove their love by following through on their commitment to give.