1 Corinthians 9:24-26

Riverside(i) 24 Do you not know that those who run in a stadium all run, yet one gets the prize? Run so as to win. 25 Every one who contends in the games practices self-restraint in all things. They do it to win a fading crown, but we for an unfading one. 26 Thus I run with no uncertain goal: thus I strike, not as if pounding the air.