It is easy to make a good start. Finishing well is important! Many today decide to quit smoking/alcohol. They do without for few days. But then, they start all over again. Starting with a weight-loss diet program is exciting, but we can get our expected results only if we hang into it for long.
Paul, in his letter to Timothy, exhorts him to keep running well. Paul was nearing his death. Paul could look into his past and confidently say that he had fought the good fight and had kept the faith till the end.
2 Timothy 4:7 - I have fought the good fight, I have finished the race, I have kept