We resist change less when we associate it with mission and fortify it with hope. So argues longtime congregational consultant Peter Steinke in his fourth book A Door Set Open as he explores the relationship between the challenges of change and our own responses to new ideas and experiences. Steinke builds on a seldomexplored principle posited by the late Rabbi Edwin Friedman the hostility of the environment is proportionate to the response of the organism. The key Steinke says is not the number or strength of the stressors in the systemanxiety poor conditions deteriorating valuesbut the response of the individual or organization to what is there. Drawing on Bowen system theory and a theology of hope as well as his experience working with more than two hundred congregations Steinke makes the case that the church has entered an era of great opportunity. Theologian and sociologist Ernst Troeltsch said the church had closed down the office of eschatology. Steinke reopens it and draws our attention to Gods future to a vision of hope for the people of God. The door is set open for exploration and new creation.