Sustaining Grace explores the dynamic between new faith communities and denominational systems through the lens of stewardship and sustainability. As a collection, these essays suggest that to facilitate ecologies for innovation in our current era, established congregations and new faith communities must model the sustaining grace of God to one another in creative ways. Thus, problems of sustainability are not for church planters to solve alone, but rather are related to the theologies of stewardship and the ecclesial system to which they belong. Issues of vision are not for denominational systems to theorize alone, but are given shape on their historic foundations in the creative and prophetic structures practiced in new faith communities.