Therefore, it is essential that our Church does not fall back into the old papacy with its heathen clericalism, and so lose all fruits of the Reformation. In the Church, Christ must remain upon His throne, and preachers must remain servants rather than lords of Christians. Each congregation must be a flock of Christ, not a clerical empire. Faith has everything that Christ acquired for the sinner. All of this is summed up in the doctrine that Christ gave the keys of the kingdom of heaven to the Church of the believers, not to those who help public office.
God Grant It: Daily Devotions from C. F. W. Walther p 364