2 Corinthians 12:6-7

However, if I were to boast, it wouldn’t be ridiculous at all, for I would be speaking the truth. Yet I will refrain, lest others think higher of me than what I demonstrate with my life and teaching. The extraordinary level of the revelations I’ve received is no reason for anyone to exalt me. For this is why a thorn in my flesh was given to me, the Adversary’s messenger sent to harass me, keeping me from becoming arrogant.