One point of theological difference is embodied in the dispute regarding the inclusion of the "Filioque" in the Nicene Creed. In the view of the Catholic Church, what it calls the legitimate complementarity of the expressions "from the Father" and "from the Father and the Son" does not provide it does not become rigid, affect the identity of faith in the reality of the same mystery confessed. The Orthodox, on the other hand, view inclusion of the phrase to be almost heretical (see also the Trinity section).