1 Corinthians 9:25-27

ABU(i) 25 And every one who contends for the prize is temperate in all things; they indeed to obtain a corruptible crown, but we an incorruptible. 26 I therefore so run, as not uncertainly; I so fight, as not beating the air. 27 But I keep under my body, and bring it into subjection; lest haply, having preached to others, I myself should be rejected.