2 Corinthians 8:19 And not that only, but who was also chosen of the churches to travel with us with this grace, which is administered by us to the glory of the same Lord, and declaration of your ready mind:

This unnamed man was one who recommended of the churches in Macedonia, a man earnest and willing, to accompany the Apostle Paul and others to see to the safe delivery of the gift to the saints in Jerusalem. All for the glory of God. There was this careful handling of the collection so that it can safely reach the church in Jerusalem.

The Apostle Paul was thankful that the church is Corinth readily agreed to this collection when he prayerfully suggested it. And now, he wrote to see to the completion of the task.