1 Coríntios 9

24 Know ye not, that they that run in a furlong, all run, but one taketh the prize? So run ye, that ye catch.

25 Each man that striveth in fight, abstaineth him from all things; and they, that they take a corruptible crown, but we an uncorrupt.

26 Therefore I run so, not as to an uncertain thing; thus I fight, not as beating the air;

27 but I chastise my body, and bring it into servage [or servitude]; lest peradventure when I preach to others, I myself be made reprovable.