Because, The letters, he says, are indeed weighty and powerful, but his bodily presence is weak, and his speech is disdained.
For Christ sent me not to immerse, but to preach the good-news, not in wisdom of speech lest the cross of Christ would be emptied.
But even if I am unskilled in speech, yet not in knowledge, but in everything made known in all things to you.
But ye know that through a weakness of the flesh I preached the good-news to you the first time.
And Moses said to LORD, Oh, LORD, I am not eloquent, neither heretofore, nor since thou have spoken to thy servant, for I am slow of speech, and of a slow tongue.
For since in the wisdom of God the world did not know God through its wisdom, it pleased God through the foolishness of preaching to save those who believe.
And I, brothers, when I came to you, came not in eminence of speech or of wisdom proclaiming the testimony of God to you.
Now I Paul myself entreat you by the meekness and gentleness of Christ, who indeed am lowly in presence among you, but am bold toward you when absent.
For such a man I will boast, but for myself I will not boast, except in my weaknesses.