since there is still much confusion or lack of clarity in the term “missional” (like any unfamiliar word that’s trying to move us beyond old catergories). I found this helpful, and heartily agree (and subscribed to it).
“God is about a big purpose in and for the whole of creation. The church has been called into life to be both the means of this mission and a foretaste of where God is inviting all creation to go. Just as its Lord is a mission-shaped God, so the community of God’s people exists, not for themselves but for the sake of the work. Mission is therefore not a program or project some people in the church do from time to time (as in “mission trip”, “mission budget” and so on); the church’s very nature is to be God’s missionary people. We use the word missional to mark this big difference. Mission is not about a project or a budget, or a one-off event somewhere; it’s not even about sending missionaries. A missional church is a community of God’s people who live into the imagination that they are, by their very nature, God’s missionary people living as a demonstration of what God plans to do in and for all of creation in Jesus Christ.”~ Alan J. Roxburgh & Fred Romanuk, The Missional Leader, p.XV