“Be of the same mind, live in peace.” The request he made in the former Epistle also, at the opening. For it is possible to be of one mind, and yet not to live in peace, [for instance], when people agree in doctrine, but in their dealings with each other are at variance. But Paul requires both. (St. John Chrysostom, Homilies on Second Corinthians, XXX, on 2 cor 13:11)