John 17 contains the prayer that Jesus prayed with His disciples on the night of the Last Supper, only a few hours before He would die. Ask most Christians what the primary subject of that prayer was and they will say "unity". Unity is certainly a prominent feature of the prayer but, even more so, the prayer is about disciple-making. In the prayer, Jesus acknowledges the completion of His task and identifies what He has done as a disciple-maker.