Paul has explained how Christians have many rights as children of God, but that he himself did not use those rights, in order that the gospel message from him would not be hindered. (12b) Now he describes the full extent of his own example, showing how much he denied himself, even changing his lifestyle to be able to deliver the gospel message to all kinds of people (22). He uses strong language, figuratively calling himself a “slave of all people” (19). This is true missionary spirit.

Paul also brought this up as a rebuke to certain Corinthian Christians, who were trying to see how much of a worldly life they could live and still be called Christians. Anyone with such an attitude is missing the entire point of Christian life. Christian life for all believers is like a race, requiring discipline and self-denial, as Jesus himself spoke of taking up our cross to follow him. Ultimately, it is we who must discipline ourselves for this race (27). It is worth it because, unlike earthly races, this is a race for an eternal prize (25).
Application: Father, thank you the example of Jesus and of Paul who took up their crosses. Grant me willingness and commitment to undertake the discipline necessary to run a good race of faith.
One Word: Discipline to run the race