2 Corinthians 12:2-10 New King James Version (NKJV)
2 I know a man in Christ who fourteen years ago—whether in the body I do not know, or whether out of the body I do not know, God knows—such a one was caught up to the third heaven. 3 And I know such a man—whether in the body or out of the body I do not know, God knows— 4 how he was caught up into Paradise and heard inexpressible words, which it is not lawful for a man to utter. 5 Of such a one I will boast; yet of myself I will not boast, except in my infirmities. 6 For though I might desire to boast, I will not be a fool; for I will speak the truth. But I refrain, lest anyone should think of me above what he sees me to be or hears from me.
The Thorn in the Flesh
7 And lest I should be exalted above measure by the abundance of the revelations, a thorn in the flesh was given to me, a messenger of Satan to [a]buffet me, lest I be exalted above measure. 8 Concerning this thing I pleaded with the Lord three times that it might depart from me. 9 And He said to me, “My grace is sufficient for you, for My strength is made perfect in weakness.” Therefore most gladly I will rather boast in my infirmities, that the power of Christ may rest upon me. 10 Therefore I take pleasure in infirmities, in reproaches, in needs, in persecutions, in distresses, for Christ’s sake. For when I am weak, then I am strong.