2 Corinthians 12:5-8

On behalf of such a man [and his experiences] I will boast; but in my own behalf I will not boast, except in regard to my weaknesses. If I wish to boast, I will not be foolish, because I will be speaking the truth. But I abstain [from it], so that no one will credit me with more than [is justified by what] he sees in me or hears from me. Because of the surpassing greatness and extraordinary nature of the revelations [which I received from God], for this reason, to keep me from thinking of myself as important, a thorn in the flesh was given to me, a messenger of Satan, to torment and harass me—to keep me from exalting myself! [Job 2:6] Concerning this I pleaded with the Lord three times that it might leave me