"As the Father has sent me, so I send you." Those of us called to Christian ministry are commissioned and sent by Jesus, just as he himself was called and sent by the Father. Thus we naturally pattern our ministries after Christ's example. But distinctively Christian service involves the Spirit as well, just as Jesus himself accomplished his ministry in the power of the Spirit. Thus the whole Trinity--Father, Son and Holy Spirit--gives shape to truly authentic Christian ministry. Though as Christians we all affirm the doctrine of the Trinity, many of us might struggle to explain how...