1 Corinthians 1:17 For Christ did not send me to baptize, but to preach the gospel, not in cleverness of speech, so that the cross of Christ would not be made void.

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

2 Corinthians 11:6 But even if I am unskilled in speech, yet I am not so in knowledge; in fact, in every way we have made this evident to you in all things.

2 Corinthians 12:7 Because of the surpassing greatness of the revelations, for this reason, to keep me from exalting myself, there was given me a thorn in the flesh, a messenger of Satan to torment me-- to keep me from exalting myself!

Galatians 4:13 but you know that it was because of a bodily illness that I preached the gospel to you the first time; (NASB ©1995)