A nice quote from Ross Wagner:
[T]he overarching narrative of the missio Dei provides the proper context for offering an account of the nature and function of Scripture in the church … While redemption is from first to last the work of God in Jesus Christ through the power of the Holy Spirit, it is a work that nonetheless establishes reconciled human beings as active co-laborers with God. In union with Christ, we find our lives increasingly conformed to the pattern of Jesus’ own self-giving love, as in the power of the Spirt and under the tutelage of the Scriptures we participate in the on-going mission of the triune God to the world.”
J. Ross Wagner, “Mission Dei: Envisioning an Apostolic Reading of Scripture,” Missiology 37 (2009): 19-32 (29).