Romans Study 79. Cary Cox, from Romans 12:11-13. As Paul continues to teach us what daily, practical Christianity looks like, we learn that Christians serve. How do Christians serve? God calls us to eager diligence, not lazy, half-heartedness. God calls us to spiritual fire, not cold, prayer-less efforts. God calls us to endure hard trials, still serving, by refueling our present joy through future hope. And God calls us to generous mercy, sharing the needs of the saints and seeking opportunities to serve strangers. May God raise up an army of faithful, fiery servants of Christ!