The 1934 Barmen Declaration was a call to resistance against the theological claims of the Nazi state. Almost immediately after the Nazi seizure of power in 1933, Protestant Christians faced pressure to "aryanize" the Church, expel Jewish Christians from the ordained ministry and adopt the Nazi "Führer Principle" as the organizing principle of church government. At Barmen, this emerging "Confessing Church" adopted a declaration drafted by Reformed theologian Karl Barth and Lutheran theologian Hans Asmussen, which expressly repudiated the claim that other powers apart from Christ could be sources of God's revelation.