Galatians

And I was with you in weakness, and in fear, and in much trembling.

But we have this treasure in earthen vessels, that the excellency of the power may be of God, and not of us.

And lest I should be exalted above measure through the abundance of the revelations, there was given to me a thorn in the flesh, the messenger of Satan to buffet me, lest I should be exalted above measure.

Therefore I take pleasure in infirmities, in reproaches, in necessities, in persecutions, in distresses for Christ’s sake: for when I am weak, then am I strong.

For his letters, say they, are weighty and powerful; but his bodily presence is weak, and his speech contemptible.