1 Corinthians 9:27
New International Version (NIV)
27 No, I strike a blow to my body and make it my slave so that after I have preached to others, I myself will not be disqualified for the prize.
From BibleGateway.com: http://www.biblegateway.com/passage/?search=1 Corinthians 9:27&version=NIV
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