2 Corinthians 12:7
New International Version (NIV)
7 or because of these surpassingly great revelations. Therefore, in order to keep me from becoming conceited, I was given a thorn in my flesh, a messenger of Satan, to torment me.
From BibleGateway.com: http://www.biblegateway.com/passage/?search=2 Corinthians 12:7&version=NIV
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