It is to him that Paul decides to write a letter as he approaches death. I remember you in my prayers night and day, greatly desiring to see you, being mindful of my tears, that I may be filled with joy. The crown of righteousness. Run in such a way as to get the prize. Everyone who competes in the games goes into strict training.
Athletes have to train almost constantly.
They have to bring their bodies under subjection. They have to watch their diet. They hire personal trainers and coaches. They do whatever they can to win, to obtain the prize. For the athletes in Paul's day, their reward for their efforts was a simple laurel wreath whose leaves faded away in only a few days.