Discipline is crucial for Christians as it helps in the pursuit of holiness and the avoidance of spiritual laziness.
Discipline is essential for Christians because it reflects the seriousness of the race we are called to run. As Paul notes in 1 Corinthians 9:25, athletes exhibit self-control in all things to win a perishable prize. Therefore, Christians ought to strive even more diligently for the spiritual maturity that yields eternal rewards. Paul also emphasizes the necessity of personal discipline when he insists that he keeps his body under control, illustrating the internal struggle every believer faces against their sinful nature. This discipline is directly connected to the believer's assurance of salvation and the manifestation of faith in Christ.
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