Christian Churches affirm congregational autonomy and reject denominational hierarchy. Each local congregation is a complete church under Christ, responsible for its own governance, discipline, doctrine, and practice. There is no bishop with authority over multiple congregations, no synod or presbytery that can bind congregations to decisions, and no central denomination that legislates for local churches. Christ alone is Head of the church.

While Christian Churches cooperate informally through Bible colleges (such as Cincinnati Bible Seminary, Southern Illinois University's Practical Theology Department), missionary societies, and fellowship networks, these are cooperative agencies, not governing bodies. Individual congregations send missionaries, support causes, and participate in broader ministry, but retain complete independence.

The basis for all authority in the church is Scripture. The restorationist motto 'no creed but Christ, no book but the Bible' means that no human authority (pope, creed, denominational official) can impose doctrine or practice. Scripture alone is authoritative; individual congregations apply biblical principles to their context. This produces remarkable doctrinal diversity while maintaining fellowship around apostolic essentials.