If you’re looking for more sermon ideas on service, be sure to head over to SermonSearch.com to find 100’s of sermons on servanthood to help you out! Sermons. Free Trial ... Christian Service: The Decisive Question (John 21:1-23) Robert E. Coleman. Christian Service: The Decisive Question (John 21:1-23) 1; 2; Like Us On Facebook. Apr 12, 2013 · These verses reveal seven principles of ministry that apply to every believer, because every Christian is in the ministry. These are not the only principles you need to know, nor are they even the most basic. But you won’t survive in Christian service and hear, “Well done, good and faithful servant,” from our Lord without them..