1) Training for a disciplined life involves exercising self-control over one's thoughts, desires, and actions through constant practice just as an athlete trains their body. 2) Living a disciplined life requires running the race of life with endurance, laying aside distractions, and resisting sin just as Jesus endured hostility without growing weary. 3) Those who live by the Spirit rather than their sinful nature are able to crucify their sinful passions and produce righteousness through enduring hardship and discipline as training for life.