Mission [is] understood as being derived from the very nature of God. It [is] thus put in the context of the Trinity, not of ecclesiology or soteriology. The classical doctrine of the missio dei as God the Father sending the Son, and God the Father and the Son sending the Spirit [is] expanded to include yet another “movement”: Father, Son, and Holy Spirit sending the church into the world.
David Bosch, Transforming Mission: Paradigm Shifts in Theology of Mission (Maryknoll, NY.: Orbis, 1991), 390. Quoted in Darrel L. Gruder, ed., Missional Church: A Vision for the Sending of the Church in North America (Grand Rapids: Eerdmans), 5.