1 Corinthians 9:24-27 - The Need For Self-Discipline
24 Do you not know that in a race all the runners run, but only one receives the prize? Run in such a way that you may win. 25 Everyone who competes in the games exercises self-control in all things. They do it to receive a perishable wreath, but we an imperishable. 26 Therefore I do not run aimlessly. I do not box as a man beating the air. 27 But I discipline my body and make it my slave, so that, after I have preached to others, I myself will not be disqualified.