'... so that I might finish my course with joy, and the ministry, which I have received of the Lord Jesus.' Acts 20:24
Joy means the perfect fulfilment of that for which I was created and regenerated, not the successful doing of a thing. The joy Our Lord had lay in doing what the Father sent Him to do, and He says - "As My Father hath sent Me, even so am I sending you." Have I received a ministry from the Lord? If so, I have to be loyal to it, to count my life precious only for the fulfilling of that ministry. Think of the satisfaction it will be to hear Jesus say - "Well done, good and faithful servant"; to know that you have done what He sent you to do. We have all to find our niche in life, and spiritually we find it when we receive our ministry from the Lord. In order to do this we must have companied with Jesus; we must know Him as more than a personal Saviour. "I will show him how great things he must suffer for My sake."
"Lovest thou Me?" Then - "Feed My sheep." There is no choice of service, only absolute loyalty to Our Lord's commission; loyalty to what you discern when you are in closest contact with God. If you have received a ministry from the Lord Jesus, you will know that the need is never the call: the need is the opportunity. The call is loyalty to the ministry you received when you were in real touch with Him. This does not imply that there is a campaign of service marked out for you, but it does mean that you will have to ignore the demands for service along other lines.