1 Corinthians 9:25

And every man that striveth in the games exerciseth self-control in all things. [As Paul denied himself that the gospel might not be hindered, so each athlete, whether he intended to run, wrestle or fight, pursued a course of training and abstinence that was painful, protracted and severe, in order that no fatty tissues or depleted muscles might hinder him in his struggle for victory.] Now they do it to receive a corruptible crown; but we an incorruptible. [For this worthless, withering symbol of victory, men made measureless sacrifice. For the incomparably better and fadeless crown of eternal life, how cheerfully Christians should deny and discipline themselves-- 1 Peter 5:4]