1 Coríntios 9

24 Do you not know that in a race all the runners compete, but only one receives the prize? So run that you may obtain it.

25 Every athlete exercises self-control in all things. They do it to receive a perishable wreath, but we an imperishable.

26 Well, I do not run aimlessly, I do not box as one beating the air;

27 but I pommel my body and subdue it, lest after preaching to others I myself should be disqualified.