10 For his letters, say they,  are weighty and powerful; but his bodily presence is weak, and his speech contemptible.
10 For some say, "His letters are weighty and forceful, but in person he is unimpressive and his speaking amounts to nothing."
10 For they say, "His letters are weighty and strong, but his bodily presence is weak, and his speech of no account."
10 "His letters are brawny and potent, but in person he's a weakling and mumbles when he talks."
10 "For his letters," they say, "are weighty and powerful, but his bodily presence is weak, and his speech contemptible."
10 For some say, "Paul's letters are demanding and forceful, but in person he is weak, and his speeches are worthless!"
Matthew Henry's Commentary on 2 Corinthians 10:10
Commentary on 2 Corinthians 10:7-11
(Read 2 Corinthians 10:7-11)
In outward appearance, Paul was mean and despised in the eyes of some, but this was a false rule to judge by. We must not think that none outward appearance, as if the want of such things proved a man not to be a real Christian, or an able, faithful minister of the lowly Saviour.