1 Corinthians 9:27

JMNT(i) 27 To the contrary, I am repeatedly "striking my face below my eyes and beating my body black and blue" (= treating my body severely by discipline and hardship) and continually leading [it] as a slave (or: causing it to lead the life of a slave), lest somehow, while proclaiming (heralding; preaching; [note: at the games it means to announce the rules of the game and call out the competitors]) to (or: for) others, I myself should (can; may; would) come to be one that does not stand the test (or: unproved; or: without the approval which comes from testing; or: disapproved and disqualified).