1 Corinthians 9:24-27
24 Know ye not that they which run in a race run all, but one receiveth the prize? So run, that ye may obtain.
25 And every man that striveth for the mastery is temperate in all things. Now they [do it] to obtain a corruptible crown; but we an incorruptible.
26 I therefore so run, not as uncertainly; so fight I, not as one that beateth the air:
27 But I keep under my body, and bring [it] into subjection: (Keep what I do lined up with the Word of God) lest that by any means, when I have preached to others, I myself should be a castaway. (Disqualified from receiving this crown)