1 Corinthians 9:25-27

21st Century King James Version

²⁵ And every man that striveth for mastery is temperate in all things. Now they do it to obtain a corruptible crown, but we an incorruptible.

²⁶ I therefore so run, but not with uncertainty; I so fight, but not as one that beateth the air.

²⁷ But I keep control of my body, and bring it into subjection, lest that by any means, when I have preached to others, I myself should be a castaway.