Original Verse:
1st Corinthians Chapter 9 Verse 27But I give blows to my body, and keep it under control, for fear that, after having given the good news to others, I myself might not have God's approval.

Reference Verses:
Romans Chapter 8 Verse 13For if you go in the way of the flesh, death will come on you; but if by the Spirit you put to death the works of the body, you will have life.
2nd Corinthians Chapter 13 Verse 5Make a test of yourselves, if you are in the faith; make certain of yourselves. Or are you not conscious in yourselves that Jesus Christ is in you, if you are truly Christ's?
Luke Chapter 18 Verse 5Because this widow is a trouble to me, I will give her her right; for if not, I will be completely tired out by her frequent coming.