The keys of the kingdom are not locked in a drawer. They are given to the church (Matt. 16:18-19). The kingdom is not the possession of the church; the church is part of the kingdom treasure we possess, not just evangelicalistic machinery, but part of the package we call the good news. It has been placed on the earth to proclaim the kingdom and to exemplify it.
Harvey Conn, Evangelism: Doing Justice and Preaching Grace