All athletes are disciplined in their training. They do it to win a prize that will fade away, but we do it for an eternal prize.
I Corinth. 9:25 (NLT)
Now every athlete who [goes into training and] competes in the games is disciplined and exercises self-control in all things. They do it to win a crown that withers, but we [do it to receive] an imperishable [crown that cannot wither].
