1 Corinthians 9:27
"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."
Cross References (ranked by relevance)
For if ye live after the flesh, ye shall die: but if ye through the Spirit do mortify the deeds of the body, ye shall live.
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.
Mortify therefore your members which are upon the earth; fornication, uncleanness, inordinate affection, evil concupiscence, and covetousness, which is idolatry:
Dearly beloved, I beseech you as strangers and pilgrims, abstain from fleshly lusts, which war against the soul;
Wherefore, if meat make my brother to offend, I will eat no flesh while the world standeth, lest I make my brother to offend.
For what is a man advantaged, if he gain the whole world, and lose himself, or be cast away?
Flee also youthful lusts: but follow righteousness, faith, charity, peace, with them that call on the Lord out of a pure heart.
In weariness and painfulness, in watchings often, in hunger and thirst, in fastings often, in cold and nakedness.
Which have forsaken the right way, and are gone astray, following the way of Balaam the son of Bosor, who loved the wages of unrighteousness;
But unto the wicked God saith, What hast thou to do to declare my statutes, or that thou shouldest take my covenant in thy mouth?
Reprobate silver shall men call them, because the LORD hath rejected them.
That he may take part of this ministry and apostleship, from which Judas by transgression fell, that he might go to his own place.