Jesus Christ did not say — “Go and save souls” (the salvation of souls is the supernatural work of God), but — “Go and teach,” i.e., disciple, “all nations,” and you cannot make disciples unless you are a disciple yourself. When the disciples came back from their first mission, they were filled with joy because the devils were subject to them, and Jesus said — “Don’t rejoice in successful service; the great secret of joy is that you are rightly related to Me.” The great essential of the missionary is that he remains true to the call of God, and realises that his one purpose is to disciple men and women to Jesus.