Upvote:1
One other in NT is this:
And if also a man contend in the games, he is not crowned, except he have contended lawfully. - 2 Timothy 2:5 (ASV).
Paul's point to Timothy is that he must be disciplined and willing to suffer hardship in order to please God and obtain the reward.
Hebrews 12:1:
Therefore let us also, seeing we are compassed about with so great a cloud of witnesses, lay aside every weight, and the sin which doth so easily beset us, and let us run with patience the race that is set before us