New Revised Standard Version
For they say, “His letters are weighty and strong, but his bodily presence is weak, and his speech contemptible.”

Contemporary English Version
Some of you are saying, "Paul's letters are harsh and powerful. But in person, he is a weakling and has nothing worth saying."

New American Bible
For someone will say, “His letters are severe and forceful, but his bodily presence is weak, and his speech contemptible.”

Douay-Rheims Bible
(For his epistles indeed, say they, are weighty and strong; but his bodily presence is weak and his speech contemptible):

(For his epistles indeed, say they, are weighty and strong; but his bodily presence is weak and his speech contemptible):

say they.

2 Corinthians 10:11 Let such a one think this, that such as we are in word by epistles when absent, such also we will be indeed when present.

but.

2 Corinthians 10:1 Now I Paul, myself beseech you, by the mildness and modesty of Christ: who in presence indeed am lowly among you, but being absent am bold toward you.

2 Corinthians 12:5-9 For such an one I will glory: but for myself I will glory nothing but in my infirmities. . . .

1 Corinthians 2:3,4 And I was with you in weakness and in fear and in much trembling. . . .

Galatians 4:13,14 And you know how, through infirmity of the flesh, I preached the gospel to you heretofore: and your temptation in my flesh . . .

and his.

2 Corinthians 11:6 For although I be rude in speech, yet not in knowledge: but in all things we have been made manifest to you.

Exodus 4:10 Moses said: I beseech thee, Lord, I am not eloquent from yesterday and the day before; and since thou hast spoken to thy servant, I have more impediment and slowness of tongue.

Jeremiah 1:6 And I said: Ah, ah, ah, Lord God: behold, I cannot speak, for I am a child.

1 Corinthians 1:17,21 For Christ sent me not to baptize, but to preach the gospel: not in wisdom of speech, lest the cross of Christ should be made void. . . .

1 Corinthians 2:1-4 And I, brethren, when I came to you, came not in loftiness of speech or of wisdom, declaring unto you the testimony of Christ. . . .