1 Coríntios 9

24 Know you2f not that they which run in a race run all, but one receives the prize? So run, that you2f may obtain.

25 And every man that strives 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 beats the air:

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