These character traits are perfected through the Holy Spirit and are vital to us if we are to mature on this Christian journey. And even though the prize Paul speaks of is our heavenly reward, we can't ignore the importance of exercising these same qualities in our physical lives.
It's actually difficult (if not impossible) to separate these two aspects of our existence since spiritual maturation requires that we keep fleshly desires under subjection (including the desire to overeat), and that we become adept at resisting temptation (including the temptation to indulge ourselves with our favorite foods).
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