Unfortunately, the English translation of the Declaration that occurs in Arthur C. Cochrane's book, The Church's Confession under Hitler (Philadelphia: Westminster Press, 1962; pp. 237-42), is not entirely accurate. The online reproduction of that translation (http://www.sacred-texts.com/chr/barmen.htm) also includes material that was not originally a part of the Declaration itself, and it omits some material.
I have therefore attempted a translation of the Declaration myself and include it below as this week's "pericope." My translation is based on the seventh German edition: Martin Heimbucher and Rudolf Weth, eds., Die Barmer Theologische Erklärung: Einführung und Kokumentation, foreword by Wolfgang Huber (Neukirchen-Vluyn: Neukirchener Verlag, 2009), 33-43.
If anyone has suggestions for improving my translation, please feel free to share them with me.