William Burkitt on 2 Corinthians 10:7

Because the false apostles had taught the Corinthians to despise St. Paul, upon the account of his mean appearance; he here expostulates with them, and desires to know whether they would judge of men by outward appearance, or by inward worth? As if he said, "Are ye so weak as to judge of me by my outward person, by my bodily presence, by the meanness of my garb, by the smallness of my stature, by my outward aspect and countenance? but if you will judge of me, and the pretended apostles, by ministerial gifts and authority received from Christ, surely I have as much to shew of these, as they can pretend to shew; for in nothing was I behind the very chiefest apostles." There is no judging of men, much less of ministers, by outward appearances: Much real worth sometimes lodges within, when nothing but what is despicable and contemptible appears without.