method as continual reformation of church doctrine. He argued that dogmatic theology, along with exegesis and church history, is a part of historical theology, since doctrines are simply the expression of Christian faith in a particular church at a particular time (Brief Outline on the Study of Theology, sec. 85; CF, secs. 15–19). As such, doctrines are not themselves, nor are they the symbols of, eternally unchanging truths; rather, doctrines are historical products that must be subjected to constant