John Calvin on 2 Corinthians 9:3

3. But I have sent the brethren. He now brings forward the reason — why it is that, while entertaining a favorable opinion as to their willingness, he, nevertheless, sets himself carefully to exhort them. “I consult,” says he, “my own good name and yours; for while I promised in your name, we would, both of us in common, incur disgrace, if words and deeds did not correspond. Hence you ought to take my fears in good part.”