The early church has defined the theological issues and established the framework or the “rules” in which the church does its theological reflection. Anyone who defends the canon, subscribes to the Apostles’ Creed, advocates the Trinity, or adheres to the full humanity and divinity of Jesus is already affirming essential aspects of classical Christianity.
-Robert Webber, Ancient-Future Faith: Rethinking Evangelicalism for a Postmodern World (Grand Rapids: Baker Books, 1999), 28.